Mercedes-Benz A-Class vs Tesla Model 3

What's the difference?

The new AMG C 43 may lack the drama and excitement we’ve come to expect from the German performance brand, but that doesn’t mean it’s a bad car. Yes, it could be more extroverted and the ride could be improved, but this is still a sharp-looking sports sedan with loads of punch.

This is a car that speaks to its times, with ever-stricter emissions regulations making it harder and harder for car companies to produce loud, wild and charismatic cars. So Mercedes-AMG has worked within those boundaries and come up with a car that retains at least some of those core elements that has made the brand so desirable over the years.

Note: CarsGuide attended this event as a guest of the manufacturer, with accommodation and meals provided.

Tesla has done enough with the introduction of this Premium Long Range RWD variant to keep the Model 3’s head well and truly above water in an increasingly competitive segment. After more than six years it still looks good, with a pleasant cabin environment, plenty of performance and leading energy efficiency. Safety is top-shelf and it stands up well in terms of practicality and driving dynamics. 

That said, the ownership proposition is average, the determination to make so many functions screen-based is frustrating and the optional Full Self-Driving system is unconvincing. With the Model S and Model Y now discontinued globally it will be interesting to see how the Model 3 continues to evolve.

Mercedes has created something of a problem for itself with its decision to introduce AMG styling packages for the majority of its range, including the C-Class.

It means the C 43 has to walk a fine line between looking like a unique AMG model, rather than just a C300 with a bodykit and not out-doing the C63.

To that end it has AMG’s now familiar grille with vertical bars, the unique and complex-looking 20-inch alloy rims and a small lip spoiler on the boot. But otherwise it is surprisingly understated for an AMG, lacking the more obvious and muscular stance of previous AMG offerings.

Inside, there’s a similar theme, with the typical Mercedes-Benz luxury appointments but with a sportier, AMG twist. The steering wheel is chunky and comes with AMG branding, metallic shift paddles and a pair of rotary dials/buttons that allow you to alter the various drive modes and settings.

The one on the right allows you to switch between the pre-set Comfort, Sport, Sport+ and Individual modes, while the one on the left can scroll between the various individual aspects to tailor the settings to the conditions.

In typical modern fashion the design is tech-laden, with a digital display for the instrument panel (that can be switched between various graphics) and a large, tablet-style central multimedia touchscreen that controls the majority of the car’s non-driving functions.

After four years in market, a heavily upgraded version of the Model 3 arrived in Australia in 2023, the biggest visual changes being a reshaped bonnet, aero massaged overall profile and angular slimline headlights.

The boot lid now incorporates a lip spoiler and the tail-lights were remodelled to create a truncated, two-layer effect. And in true Tesla fashion, the standard 18-inch alloy rims are fitted with matt black-finish aero elements filling the gaps between the satin black wheel spokes. Two new body colours - ‘Stealth Grey’ and ‘Ultra Red’ - were recently added to the available palette. For reference, our test car's finish is 'Quicksilver'. 

It’s still clearly recognisable as a Model 3, but these relatively minor design changes have helped the mid-sizer keep up with the slew of sleek newcomers it now faces.

The interior was also given a substantial makeover, the expansive 15.4-inch central display screen backgrounded by an all-new wrap-around dash and revised console treatment, the former featuring a raised insert and the latter a two-device wireless charging station.

Introduction of this Premium Long Range RWD model also brought the small but significant addition of a physical indicator stalk on the left-hand side of the steering column, replacing buttons on the steering wheel. Big ergonomic tick for that.

Customisable ambient lighting lifts the tone, soft materials look and feel good and the doorcards, bins and armrests have been reprofiled into a more sophisticated arrangement.

Our test car’s dark grey and white synthetic leather trim combination lifts the mood as does light from the huge, two-panel glass roof. But beware, while white trim looks dazzling on the showroom floor it takes some extra work to maintain its schmick appearance in the day-to-day grind.

After seven years in market the Model 3 has aged well and still looks sleek and contemporary.

The new C-Class has grown slightly in size compared to the model it replaces, most notably with a 26mm increase in the wheelbase which you can feel in the cabin.

The front seat space is good, with excellent adjustability for the power-adjustable seats and steering column. I had no trouble finding my ideal seating position which makes for a more enjoyable and uncompromised driving experience.

Rear space is a bit tighter (which is typical for this segment/size of vehicle), but thankfully the standard seats do have very deep sculpting in the backs which allow for more knee space and foot room.

However, at approximately 180cm (six-foot), I wouldn’t like to sit behind my seating position for long periods as my knees were touching the seat back, and headroom is compromised with the panoramic glass roof.

In terms of small item storage there’s a lidded console box in between the front seats as well as a pair of cupholders and a small tray where you can place your mobile phone.

It’s worth noting, though, that early examples of the C 43 in Australia do not have a wireless smartphone charging pad, with that reportedly being introduced from February production.

While that’s good news, it’s not really competitive in this day and age to offer a car costing six-figures without such technology.

There’s also only a single USB-C power outlet in the front, which is another disappointment, but there is a pair in the back.

Mercedes does win some points back for a respectable 455-litre boot, which has a nice wide load opening that will make packing luggage easier.

At just over 4.7m long, more than 1.8m wide and a bit over 1.4m tall (with a 2875mm wheelbase) the Tesla Model 3 is a low-slung medium-size sedan. 

There’s plenty of space up front, a feeling enhanced by the standard panoramic glass roof and our test car’s white trim brightening up the cabin.

There are long, wide bins on the front doors with enough room for large bottles, a slim glove box (which opens only via an on-screen button, which is annoying) and a generous lidded storage box between the seats that doubles as a centre armrest.

The console houses two cupholders with another storage cubby ahead of them (both with sliding covers over the top) and the dual device wireless charging bay on the lower part of the dash under the media screen.

Switching to the rear, at 183cm I have a surprising amount of foot, leg and headroom when sitting behind the driver’s seat set to my position. The rear door aperture is surprisingly large which helps entry and egress.

Technically able to accommodate three passengers, the back seat is best for two full-size adults on anything other than a mid-length journey, although the flat rear floor helps ease pressure on the centre occupant.

There's a well-hidden fold-down centre armrest with cupholders, there are useful bins in the doors and hard shell map pockets on the front seatbacks.

The crisp 8.0-inch rear screen is a welcome entertainment option for back-seaters and there are adjustable air vents underneath it.

For power and connectivity there are two USB-C ports and a 12-volt socket in the front compartment, a USB-A in the glove box (mainly for dash cam and ‘Sentry Mode’ data storage) and two USB-C ports in the rear under the vents.

Boot space is a ample at 682 litres (the bootlid is adjustable for opening height) with an 88L ‘frunk’ in the nose. And if you need to tow a relatively light load like a box trailer or Jet Ski (or two) you can hook up a 1.0-tonne braked trailer (750kg unbraked).

While we understand it helps maximise battery space and reduce weight, we’re not on board with Tesla’s policy of providing a repair/inflator kit rather than a physical spare tyre. Even though this is likely to be a primarily urban cruiser, it’s not good enough. 

Then, there’s the Tesla app, an electronic Swiss Army Knife that facilitates everything from remote vehicle access and cabin ‘preconditioning’ to planning your route (complete with charging stops) and monitoring Sentry Mode (checking the vehicle’s surroundings and receiving alerts of potential threats).

The list of functions goes on and on, but suffice it to say the app is hugely handy. For example, ‘Dog Mode’ keeps the air con on with the car locked for the benefit of your four-legged friend and lets passers by know the doggo is safe via a bold message on the central screen. An internal camera, accessible via the app, lets you check-in remotely, too. Nice. 

Given its overall size and despite its conventional sedan configuration, the Tesla Model 3 offers efficient packaging and a heap of thoughtful features to enhance everyday practicality.

At $61,900, before on-road costs in NSW ($67,329, drive-away), the Tesla Model 3 Premium Long Range RWD sits in the same price ballpark as other pure-electric mid-size sedans like the BYD Seal Premium RWD ($58,798, BOC), Hyundai Ioniq 6 2WD ($67,300, BOC), MG IM5 Platinum RWD ($69,990, drive-away) and Polestar 2 Standard range Single motor ($62,400, BOC).

Broaden the consideration set to include medium EV SUVs and a dozen other options including the BYD Sealion 7, Kia EV5, Skoda Enyaq and Zeekr 7X enter the picture, many with a price-tag around $10K lower than the Model 3’s.

But price is one thing, value is another. Aside from the performance and safety tech we’ll get to shortly, let’s look at the Model 3 Premium Long Range RWD’s included features.

Standard spec highlights include LED exterior lighting, new design 18-inch alloy wheels, a 15.4-inch central display screen, synthetic leather seat trim, power-adjustable ventilated and heated front seats, tri-zone climate control, adaptive cruise control and nine-speaker audio.

There’s also ambient interior lighting, navigation (with real-time traffic updates), an 8.0-inch rear touchscreen for back seat climate and entertainment, a power boot lid, dual wireless phone chargers, surround parking sensors, keyless entry and start (plus a lot more through the Tesla app, which we’ll cover in the Practicality section) and 360-degree acoustic glass (including the standard glass roof). Still no Android Auto or Apple CarPlay, though.

Add in less obvious improvements like the extension of soft-touch materials throughout the cabin and this Model 3 stacks up well in terms of value relative to its cost-of-entry and direct competitors.

The biggest talking point about this new car is the engine, with AMG downsizing from the old C 43’s six-cylinder to a 2.0-litre four-cylinder turbocharged petrol engine.

But it’s not just any turbocharged four-pot, because it is fitted with technology that Mercedes claims has been inspired directly from its Formula One team.

While the F1 team engine facility is based in England, this engine was designed and developed by the Mercedes-AMG team at its Affalterbach headquarters, but the concept of the electric turbocharger reportedly comes from the engine that powered Lewis Hamilton to multiple world championships.

The electric exhaust gas turbocharger - to give it its official name - uses a small electric motor on the turbocharger shaft to spin up the blades without having to wait for any exhaust gases to pass through it first.

To power the electric turbo the C 43 is equipped with a mild-hybrid 48-volt electrical system.

Mercedes claims this means reduced lag and improved throttle response for a sportier driving experience. 

It also helps make this small engine produce big amounts of performance, with AMG extracting 300kW of power and 500Nm of torque from this 2.0-litre, which is more power than the previous six-cylinder C 43 managed.

The engine is paired to a nine-speed multi-clutch transmission, which isn’t a dual-clutch with a pair of clutches operating on every second gear ratio, but instead uses a “wet start-off clutch” for better take-offs and smoother shifting on the move (at least in theory).

Power is sent to the road via all four wheels thanks to Mercedes’ 4Matic all-wheel drive system.

The Tesla Model 3 Premium Long Range RWD is powered by a single permanent magnet synchronous electric motor producing a handy 235kW and in excess of 400Nm.

It sends drive to the rear wheels only via a single-speed, direct-drive automatic transmission. 

Kerb weight is 1747kg and Tesla claims 0-100km/h acceleration in a rapid 5.2 seconds.

Despite the smaller engine you can hardly call the C 43 miserly, with a claimed combined urban/highway cycle rating of 9.1-litres per 100km. That’s only a 0.2L/100km improvement over the old six-cylinder.

On test, which included a return trip from Sydney to Bathurst via motorways and some dynamic back road driving, we saw a return of 11.8L/100km on the car's onboard computer.

While hardly hybrid-worrying, it’s impressive to think that driven modestly, such a potent engine can return a single-digit fuel figure.

Tesla claims a WLTP range of up to 750km for the Model 3 Premium Long Range RWD, the official EV term for which is… a lot. 

As mentioned earlier, at the time of the car’s local launch in October last year Tesla claimed it as the longest-range EV in Australia and at the time of writing nothing had arrived to change that.

Unlike the standard Model 3, which is powered by a CATL-sourced LFP battery, the Long Range RWD is fitted with a lighter, more energy dense NMC pack from LG with a total capacity of 82kWh (78kWh usable).

In terms of energy consumption, Tesla claims 12.5kWh/100km on the combined (urban/extra-urban) cycle and on test we experimented with liberal use of the accelerator pedal, higher than average freeway running and keeping the car constantly chilled during extremely hot weather, which resulted in an average of 15.7kWh/100km. 

Aside from that, more typical stop-start urban driving with occasional use of the ‘Chill’ (eco-focused) mode brings the number down to 13.1kWh/100km.

That’s an impressive performance, with even the upper test figure more than acceptable for a 1.75-tonne electric sedan.

Capable of accepting a 250kW fast charge, Tesla says the Model 3 Long Range RWD can take on 311km of range in 15 minutes, at that speed.

On a 150kW pylon we saw capacity go from 15-85 per cent (theoretically, 600km of range) in roughly 50min, although the charger fluctuated below peak output throughout.

Let’s start with the good news. The new Mercedes-AMG C 43 is a quick car. The engine may be small in size but the electric turbocharger does its thing and provides plenty of punch.

You can get a performance boost, too, thanks to the belt-driven starter generator, which acts as a mild hybrid and gives you a surge of 10kW for a brief period if you need a sudden burst of extra speed.

The chassis is well-sorted, too, at least from a dynamic point-of-view. The rear-wheel steering can provide up to 2.5 degrees of turning, which improves handling at speed and manoeuvrability when parking.

However, there are some less-impressive elements to the C 43, too. The obvious one is the drama, or rather the lack thereof.

As I said at the beginning, the C 43 has never been as wild or raucous as the V8-powered C 63, but when you buy an AMG there’s a rightful expectation that it will provide some thrills.

The C 43 simply doesn’t have that character about it. Yes, it’s fast, but it produces that speed with efficiency rather than excitement.

And it’s not an engine size problem, because even the 2.0-litre four-cylinder A 35 and CLA 35 offer more ‘wow factor’ than the C 43.

Yes, the engine makes noise under acceleration (and it can be altered between discreet and sporty) but even at its best it sounds muted and lacks the evocative tone of a V8 or six-cylinder engine. 

Another disappointment is the transmission calibration, with the gearbox awkwardly shifting out of first gear on multiple occasions during our test drive.

In the taller gears it felt smooth enough cruising along, but given its low speed shifts we’d like to spend more time in the urban environment before passing final judgement. 

The other notable element of the driving experience we struggled with was the ride quality. While fine on the smoother motorways, our test drive included time on some patchy country back roads and the C 43, even in the ‘Comfort’ suspension setting, was simply too firm.

Riding on low profile tyres, the adaptive dampers struggled to isolate the cabin from the imperfections in the road, leading to a fussy ride at times.

Overall the C 43 is a good car, but it feels like there are still some areas where Mercedes could improve it to make it really live up to the AMG badge.

So, surprise, surprise, the Tesla Model 3 Premium Long Range RWD is quiet. But it’s quiet, even in the context of other EVs in this part of the market.

That’s thanks in part to acoustic glass in the front, rear and side windows as well as the dual-pane glass roof and the Bridgestone Turanza T005 EV tyres (235/45x18) featuring ‘B-Silent’ technology. Corny, but it works.

A kerb weight under 1.8 tonnes is relatively lightweight for an EV of this size and the Model 3 RWD is quick with 0-100km/h acceleration in a fraction over five seconds. There’s always plenty of pulling power under your right foot. 

Suspension is double wishbone front, multi-link rear and ride comfort is respectable rather than exceptional. Smaller bumps and irregularities find their way into the cabin but never to an alarming degree.

Steering sits in the middle-of-the-road between tactile and wooden, which is par for the EV course, although it's accurate and pleasingly progressive. Body roll, even in enthusiastic cornering, is modest. 

The physical brakes are ventilated discs front and rear although they don’t come into play all that often because the Model 3’s regenerative braking system is so good. Single-pedal operation soon becomes the norm. 

Our test car’s optional ‘Full Self-Driving (Supervised)’ will set you back $10,100 as a one-off payment, or $149 per month and Tesla says when using it, “Under your supervision, your car will be able to drive itself almost anywhere with minimal driver intervention”.

We engaged it for a 30km trip through suburbia, across the Sydney Harbour Bridge and into the city’s inner south. 

A rainbow-coloured magic carpet in front of the car graphic on the nav map tells you the system is engaged and although things went smoothly at first we soon sliced a bit off the inner oncoming lane as we turned right at a T-intersection, which was alarming. 

The system also has a consistent tendency to stick to the far right-hand side of the lane, stay five to 10km/h under the signposted speed limit and it continued to operate without my hands on the wheel, although I kept them there for 99.9 per cent of the drive (which is tiring when you’re not doing the steering).

Having been squeezed to the point where we couldn’t merge safely into a particular arterial road the nav took us on what’s known in the trade as a wild goose chase that had to be nipped in the bud. If I hadn’t known my way around it could have been a huge waste of time and (vehicle) energy. As much a nav issue as an FSD one, but overall, let’s just say, I’m not convinced.

Under the heading of miscellaneous observations, I’m not a fan of the on-screen gear position slider in place of a physical control. It’s needlessly fussy, although its ability to automatically switch between D to R (and back) during slow-speed manoeuvres is helpful. 

The software behind the car’s multitude of functions is exceptionally good, as is the ability to swipe in the vicinity of the temp and audio volume screen sliders, rather than having to hit them bang on and the blind-spot camera view which pops up on the screen when indicating on either side is handy.

The Model 3 has a maximum five-star ANCAP rating from assessment in 2025, with outstanding scores across the independent body’s four key pillars: Adult Occupant Protection - 90 per cent, Child Occupant Protection - 95 per cent, Vulnerable Road User Protection - 89 per cent and Safety Assist - 88 per cent. Wow.

Active (crash avoidance) safety ticks a heap of boxes including AEB (operational from one to 150km/h with forward collision warning covering cars, cyclists, pedestrians and motorcycles) as well as rear AEB, lane keeping assist (car-to-car and car-to-motorcycle), lane departure warning, blind-spot monitoring, a 360-degree camera view, driver fatigue detection and more. None of them are overly intrusive in operation.

The airbag count runs to seven - front head and front side as well as full-length curtains, and a front centre bag to minimise head clash injuries between driver and co-pilot in a side collision. There’s also multi-collision brake (to reduce the chances of subsequent impacts after an initial crash).

For baby capsules or child seats there are three top-tether points across the second row with ISOFIX anchors on the two outer positions.

A super-impressive safety package that matches or betters anything in the category.

Worth noting our test car features Tesla’s ‘Full Self-Driving (Supervised)’ functionality which we’re positioning as a convenience feature rather than an outright safety factor. So, its performance is covered in the Driving section.

The C 43 is covered by Mercedes’ five-year, unlimited kilometre warranty, which has become the new standard for the luxury car market.

Service intervals for the car are at 12 months/25,000km, which is on par with industry standard.

Mercedes-Benz Australia will offer a service plan for the C 43, prices were yet to be confirmed at the time of publication but the company has indicated it will be similar to the C300. 

That means $550 for year one, $900 for year two, the third service costs $1000 and the fourth year service costs $2450 - for a total of $4900 for the first four years of ownership.

From January 1, 2026 all new Teslas sold in Australia have been covered by a five-year, unlimited kilometre warranty (including roadside assistance for the duration), up from four years/80,000km, previously.

A big step forward, no doubt, but that just gets Tesla to a base, mainstream market level with a dozen brands now at seven years, several at eight and three at 10 years (conditional).

The drive battery is covered for eight years/192,000km, which is in line with the category norm. And a Body Rust Limited Warranty covers rust perforation for 12 years, unlimited kilometres, which is reassuring.

Tesla servicing is condition-based, so there’s no fixed schedule, with a summary on the car’s touchscreen providing a record of when vehicle maintenance was last carried out and prompts for when they should be performed next.

In the absence of a combustion powertrain the emphasis is on things like wheel rotation, balancing and alignment, brake fluid testing, air-con servicing, camera precision, radiator cleaning and high-voltage battery maintenance.

Theoretically, if a workshop visit is flagged in the car’s system, it could include actions like a ‘Vehicle Health Check’ ($270), ‘General Diagnosis’ (270 per hour), brake fluid flush ($240.80) and replacement of both cabin air filters ($106.60).

Things like air-con desiccant bag replacement ($89.18), tyre rotation ($81.00), a wheels check - if tyre wear is abnormal ($81) and a wheel alignment ($225) are also set inspection and service items. All prices exclusive of GST.

In the States, the brand provides a range of estimated annual service pricing of between US$257 - US$499 ($367-$712), based on data collected by car buying specialist CarEdge. The suggested service range is around 20,000km and the first five annual estimates are at US$300 ($430) or less.

Tesla has 25 stores in Australia, not surprisingly covering mainly urban and larger regional centres, including four each in Melbourne and Sydney, three in Canberra, two each in Adelaide, Brisbane and Perth as well as one in Hobart.