Tesla Model S vs Mercedes-Benz CLA-Class

What's the difference?

I spoke to a friend who bought a Model S before one had even hit the ground here in Australia. He chuckled when I told him how much this car cost but then said something I'd already suspected. "My mates who own a P100D would never drop that kind of money on a normal car. Buying a Tesla is like buying shares in the company, you're buying into the future."

And that's kind of the point. A $300,000 Audi RS7 (fully-loaded, obviously) is a bit slower in a straight line, looks just as good, is extremely well-built and emits noises that make people like me go as weak at the knees (just as the Model S' acceleration does). And would probably win a 10 lap race with the Tesla around Mount Panorama.

The Tesla is the future of cars. It may still be decades before the internal combustion engine is gone, but Tesla buyers are getting the jump, and today the Model S is the best car in which to make that leap.

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.

The Model S is definitely the looker of the three Tesla models on sale (the Model 3 might be some way from release, but you can reserve one and it's... weird-looking). With a slinky, Jaguar XF/Audi A7 roofline and low-slung stance, it looks the business. Like the X, the detailing of the car's surfacing and panel gaps aren't where other $200,000+ cars are, but it has improved a lot over the last couple of years.

The cabin has improved even more than the exterior.

The styling is quite sparse, really. Teslas look like computer renders in real life, especially in white, with little in the way of jewellery or detailed design elements. And that's probably the idea. It's a cleaner design than when first launched, with a simpler, flatter snout that brings out the headlights better.

The cabin has improved even more than the exterior. It's still the same minimalist design, but it fits together much more tightly than it used to. The 17.0-inch portrait screen is still there in its central but skewed-to-the-driver position and is now up to version 8. It's an impressive interface, covering off the vast majority of functions in the car, and is mostly easy to use. The responsiveness is key to its usability. If it was underpowered, you'd quickly start demanding real buttons.

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.

The Model S is a rare car in this class in that it has an almost completely flat floor, meaning rear seat passengers don't have to negotiate a transmission tunnel. The two motors run physically independently of each other so there's no crankshaft to get in the way.

The floor is thicker than a normal car, it's like a big skateboard underneath. That means your knees are up higher, which might cause numb bum on a long trip. The rear seats are comfortable enough, but middle seat occupants might feel like the outboard passengers are falling into them.

With all that torque, when you do load it up, the extra kilos barely make a dent on the performance.

The view out isn't too bad given the rising window line, and if you've got the big two piece sunroof (without cover, irritatingly... ), it's quite airy out back. And hot (with the sunroof), but you do get rear air-con vents.

The boot is an eminently sensible 744 litres with the seats up and 1795 with the seats down, although the floor doesn't fold flat. While it's a big boot, it's relatively shallow so your suitcases go in on their sides. Up in the front boot (or froot) there's another 150 litres, so you can pack a lot in to the Model S. And with all that torque, when you do load it up, the extra kilos barely make a dent on the performance.

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.

We’ll get to the major change under the bonnet shortly, but another significant alteration for this latest C 43 is the price.

It now starts at $134,900 (plus on-road costs), which pushes it well above its market rivals, the BMW M340i xDrive and Audi S4, which start at $104,900 and $106,200, respectively.

However, Mercedes has added more technology under the bonnet and loaded the C 43 up with standard equipment, including its '4Matic' all-wheel drive system, adaptive damping, rear-wheel steering and 20-inch alloy wheels.

In terms of creature comforts, the C 43 is well-appointed, with leather upholstery, a head-up display, augmented reality navigation, a panoramic sliding sunroof, and a Burmester 3D surround sound system.

There are two option packages for the C 43. The 'Digital Light Package' costs $2400 and adds Multibeam LED headlights with 'Ultra Range' highbeam, 'Adaptive Highbeam Assist Plus' as well as active light function and cornering light function.

The 'Performance Ergonomics Package' includes AMG Performance front seats, an AMG Performance steering wheel in Nappa leather and microfibre and the 'AMG Track Pace' system for an additional $5200.

The P100D ships with two electric motors fed by a huge battery pack which triples as the bulk of the chassis and a super-strong crash structure. It's also shared with the Model X SUV.

Combined power output is 568kW with more of it out the back rather than up front. Torque is quoted at 1000Nm, but it's likely more than that. Claimed 0-100km/h time is a mildly unbelievable 2.7 seconds, with a further two-tenths to be shaved off when you press and hold Ludicrous Mode and accept a warning that you'll wear the car out faster if you use it.

With 'Ludicrous Mode' comes not just software but a higher capacity fuse that allows more power to be drawn from the batteries for longer to provide the searing acceleration.

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.

Zippo. Obviously with the new rules for Tesla Superchargers, it's not as cheap to own and run a Tesla as it was before (from January 2017, all new orders don't get free juice after the first 400kWh), but if you charge it at home (and can get away with it), it'll probably be cheaper than using Tesla's chargers. If you look, there's a company offering $1 per day charging for electric cars.

If I'd charged the car to 100 percent rather than the 80 percent recommended by Tesla for most charges (past that mark, the charge rate drops and the software has to slow to a trickle, doling out the electrons to the different cells), I would have managed just over 400km on the charge.

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.

The first time I drove a Model S, I enjoyed the acceleration and the silence of the electric motor (this was back in the Dark Ages when even the P90 only had one motor). And that has remained, with the air suspension providing a firm but comfortable ride despite the P100D's 21-inch rims and very low profile tyres. Electric motoring in any electric car is addictive.

Much progress has been made (yes, I'm getting to the acceleration, stay with me) in the way it drives. The earlier cars felt too computer gamey, with little feel through the wheel or the seat of your pants. The steering is better, especially in Sport mode, but not a lot gets through the air suspension, so it takes a while to build confidence in the chassis.

One passenger became quite emotional, almost crying. And not just because they were stuck in a car with me.

On the freeway (look, you can read ahead if you must) it's amazingly quiet, with just a bit of a rustling around the mirrors. Well, of course it's quiet, it's electric. For chassis and NVH (noise, vibration and harshness) squashers, not having the marvellous engine noise means much harder work to dull the other noises you just don't hear when there's an internal combustion engine.

And there's the acceleration. As the driver, you obviously know it's quick. Mash the throttle and the response is instant, the horizon closing in on you like you're attached by a very stretched and immensely strong bungee strap that's just been released. The way cars disappear in your rear vision mirror is hilarious.

It's more fun as a passenger, though. The Model X elicited whooping and laughing, but the P100D's extra 0.6s-worth of acceleration over the P90D, delivered with a truckload more G-force, equals silence. One woman said she was glad I'd caught her before dinner rather than after, before bursting forth with a range of expletives. One passenger became quite emotional, almost crying. And not just because they were stuck in a car with me.

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.

The C43 gets a comprehensive list of safety equipment that leaves little out. Obviously there are the usual passive safety items, like 10 airbags, including dual-front combined pelvic/thorax airbags and a front centre bag that drops between the front seat passengers to minimise the chances of a head clash.

Also included as standard is autonomous emergency braking front and rear (covering speeds between 7.0-200km/h), adaptive cruise control with active stop/go, a 360-degree parking camera, 'Active Parking Assist', 'Active Lane Keeping Assist', 'Blind Spot Assist' and, of course, anti-lock brakes with 'Brake Assist' and 'Adaptive Brakes' with Hold function and electronic stability control.

Also included are dusk-sensing LED lights, rain-sensing wipers and run-flat tyres with tyre pressure warning.

The C43 also comes equipped with Mercedes’ 'Driving Assistance Package Plus', which adds even more safety gear. This includes 'Active Blind Spot Assist', 'Active Brake Assist with Cross-Traffic Function', 'Active Emergency Stop Assist', 'Active Lane Change Assist', 'Active Lane Keeping Assist', 'Active Steering Assist', and 'Active Stop-and-Go Assist'.

While the C43 hasn’t been specifically crash-tested, the latest C-Class was rated by ANCAP with a five-star score for all models except the upcoming C 63 S E Performance.

Tesla offers a four-year/80,000km warranty with a parallel eight year/unlimited kilometre warranty for the battery and drive units. Roadside assist applies for the four year warranty period.

Tesla offers two maintenance plans, three and four years in length. The three year plan costs $2100 and the four year $3175. Paying for the services individually over the same period will cost $2300 and $3425 respectively. That includes a wheel alignment (if needed), but it isn't particularly cheap when compared with 'normal' luxury cars.

Your first 400kW/h of recharging is free using Tesla's supercharger network, so that would be four full charges from empty (which you wouldn't do, obviously), or about 1600km worth. After that, it's 35c per kWh or $35 for a full charge.

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.