Mercedes-Benz C300 vs Tesla Model 3

What's the difference?

Over five decades, the Mercedes-Benz C-Class has pivoted between mastery and mediocrity, and all-too-often relied on that three-pointed star up front to win over buyers.

Thankfully, the W206 is one is one of the better generations. It's easier on the eye, comfier to travel in, more intuitive to use, safer across the board and a huge improvement to drive. On the evidence of the C200 and C300 launch grades, there's newfound depth and consistency to savour.

Sure, prices have gone up, the C200 could use a bit more power, the steering could benefit from a bit more feel, the odd build-quality glitch made itself heard and there's a fair bit of road noise at times, but overall, the C-Class now deserves to be at the top of your luxury medium sedan shopping list.

Particularly if you can afford to stretch to the rorty C300.

The Model 3 Performance is one of those cars that’s undeniably impressive in almost every way, and hugely fast in absolutely every way, and yet can somehow still leave you feeling slightly cold. Or at least damp with fear sweat.

It’s not my kind of sports car, but if you love speed, and EVs, and Tesla, you’re gong to think it’s the Queen Bee’s knees.

Publishers: Please place the following in BOLD after the verdict:

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

If you're checking out the new C-Class for the first time from the front, you'll probably think… hmm, it looks just like the old one, and that's largely true.

But a side view reveals proportions that have changed significantly, thanks to the more raked windscreen, shorter overhangs and cleaner lines, which give it a slightly smaller S-Class look.

Which is more in fitting with where Mercedes wants to place this car against its 3 Series and A4 competitors.

Additionally, the taillights are split for the first time, allowing for a wider boot aperture since the lid now contains some of the lighting elements.

The shrunken limo looks aren't just the whim of some designer or Mercedes-Benz marketing department copywriter, either.

Underneath is an albeit highly modified version of the latest S-Class' MRA2 platform, which results in the longest (at 4755mm) and widest (at 1820mm) C-Class in the series' 40-year existence, as well as the first with this level of electrification capability.

Height and wheelbase dimensions also see a stretch, by 8mm and 25mm to 1450mm and 2865mm over the previous model respectively, and to the benefit of passenger accommodation.

Speaking of which, get used to this new interior aesthetic and general layout – it's a look that's probably going to filter through to most coming non-EQ-branded Mercedes models over the next few years.

From S to C to future E and A classes and beyond. It's a rare instance of trickle-down economics actually working!

Tesla’s design folks waxed long and loud about how they’d finally been able to visually lift and separate this Performance Model 3 from the basic one and they point to the new front and rear fascias, more aggressive styling, aerodynamic flicks, integrated cooling ducts, rear diffuser and carbon-fibre spoiler, which are there not only to look good, but to to “optimise lift balance and high-speed stability”.

Now, I’ll grant you it’s better than a normal Model 3, and that we were regularly approached by excited Tesla fans asking “is this the NEW PERFORMANCE OH MY GOD I WANT ONE NOW?!?"

But honestly, I still think it’s a bit subtle, and that includes the strange little 'Performance' sticker/badge on the rear, which does look a lot like the Ludicrous symbol that Elon loves, from the awful movie Spaceballs, but Tesla staff insist it’s not, nor is it Plaid. 

Clearly, the design tweaks are there for a reason, and train spotters will note the differences immediately, but it’s still just not the most exciting car to look at, nor is it anywhere near as exciting to behold as it is to drive.

One of the best things about the new C-Class is that it's larger and therefore roomier than before. It's also higher quality, easier to use, more comfortable to sit in and - overall - more of a delight to behold.

In contrast, the old C-Class dash looked and felt like it was designed for a much cheaper car, especially compared to Audi's efforts.

Obviously related to the S-Class this time around, it's clear Tesla provided the inspiration for the twin floating screen look and layout, which are just right in their driver orientation and ease of functionality.

There's never really been anything wrong with Mercedes' old front seats, but these AMG Line items are both sumptuous and bracing, keeping their occupants well located ahead of the clever and thoughtfully laid out dashboard.

The brilliantly high-resolution MBUX multimedia and voice-recognition system now works as it should - intuitively and logically, with the screen menus simple to recognise and easy to use, and most without the need to get lost in confusing sub-menus. Just like BMW has managed for years.

If you want to change the instrumentation design, it's now a couple of clearly marked steps, using handily placed switchgear. The same goes for the superb climate control and audio systems. And the wireless Apple CarPlay/Android Auto connected faultlessly and worked a treat. Effortless see-and-push operation all round, backed by concise and classy graphics.

No more degree in Earth-to-Mercedes comm skills required to master this C-Class interior.

Yet there's just enough old-school Benz features to appeal to brand diehards, from the eternal door-card mounted electric seat controls and column-mounted gear shifter, to the deep centre console and turbine face-level air vents. They meld together beautifully with the advanced tech also on offer, like the optional augmented-reality head-up display with 3D-graphics.

Annoyingly, on one of our test cars, that tradition also extended to a couple of squeaks and rattles, proving that maybe Mercedes hasn't quite conquered all its past quality gremlins. And, like most luxury cars nowadays, endless ambient lighting choices are available of dubious taste.

Never mind. This is the finest C-Class front-seat environment since, well, probably the original W210 190E's of the 1980s.

And all those extra dimensions pay dividends in terms of interior space in the back seat.

There's plenty of knee room even with the tester sat behind their 178cm frame; head room is adequate even with the optional sunroof fitted, and there's ample shoulder space. So, it's more comfortable than any C-Class ever has been in terms of sheer dimensions.

Additionally, the rear backrest is well angled, while the cushion is deep enough to provide sufficient thigh support. But the centre perch is a bit of a squeeze for all concerned. Best avoided.

There's also added practicality to be found with the large and deep door pockets, front seat-back map pockets and folding centre armrest, that not only has a tablet holder, but when pressed in twice, also reveals sliding cupholders as well. Clever.

The C-Class rear seat is really lacking for nothing, with face-level air vents, overhead lighting, grab handles and coat hooks all highlighting the level of thought that went into making this a practical compact family sedan.

Plus, the C-Class comes with this folding ski port, which along with the folding rear seats, increases boot volume from 455L to, well, a lot more. While that's not quite as good as others like the BMW 3 Series, it's big enough for this car.

Note that there is no spare wheel, as the tyres are of the limited-distance runflat variety.

Inside, the big news is the new seats. Tesla was happy to admit the pews fitted to the previous Performance just weren’t up to the job of holding humans in place when applying so much G force. 

The new 'Sport Seats' feature enhanced side cushioning and side bolsters for better lateral support during dynamic driving. And they can also be heated and ventilated. 

Elsewhere, there’s some carbon-fibre trim on top of the dash, with a Tesla-first weave pattern to further help the Performance stand out within the Model 3 line-up.

Other than that, it’s pretty standard Tesla sedan, which will be familiar if you’ve ever caught an Uber in Los Angeles. Spartan, minimalist, slightly cheap-feeling.

As for the practicality of the tech, I'm still against the giant 15-inch tablet-style touchscreen, for everything, the replacement of an indicator stalk with buttons and not having a speedo right in front of your eyes, where you need it.

Tesla says the price for the Model 3 Performance will be "starting at" $80,900, plus on-road costs. There's no word on whether there will be different spec levels and the company does not like answering questions or providing information.

What we also know about Tesla is that the price quoted could move down, or up, at any time, quite randomly, so if phrases like "residual value" or "depreciation" are of interest to you, it can be a challenging brand.

That side swipe aside, this sounds like astonishingly good value for this much performance from your Model 3 Performance. A Hyundai Ioniq 5 N would give it run for fun and involvement, if not brand fans, but it's $111,000, while a Porsche Taycan kicks off at $164,000 (it is a lot more car for the money, but it might struggle to keep up with this Tesla, at least in base model form).

In terms of equipment, it's pretty much standard Model 3 fare, other than the fast bits and a spot of carbon here and there.

You get 'Autopilot' included, of course, but you can't use all of its 'Full Self Driving functionality' on Australian roads. Not yet, anyway.

Probably the biggest departure compared to any previous C-Class is this generation's switch to direct-injection four-cylinder-only powertrains – including the coming Mercedes-AMG high-performance versions. Now that should be interesting.

As mentioned earlier, the C200's four-cylinder turbo engine is now about 25 per cent smaller in capacity, down from 2.0L to a 1496cc 1.5L twin-cam 16-valve turbo engine. Dubbed the M254, it pumps out 150kW of power at a high 6100rpm and 300Nm of torque between 1800-4000rpm.

That's not to say it's lacking in muscle, though, since it can sprint from zero to 100km/h in 7.3 seconds, on the way to a 245km/h top speed. These outputs are at least a match for the bigger-engined 3 Series and A4 equivalents, by the way.

If it's more you want, then the C300 features a 1999cc 2.0L turbo version of the M254, delivering 190kW at 5800rpm and 400Nm between 2000-3200rpm. This slashes that 0-100km/h time to a speedy six seconds flat. There's also an extra 20kW of overboost available for short periods if you're really in a hurry, while - where legal - it's possible to hit 250km/h.

Both send drive to the rear wheels via a nine-speed torque-converter automatic transmission, while the 48V mild-hybrid system, dubbed EQ Boost, employs an integrated starter-generator and lithium-ion battery that provides an additional 15kW and 200Nm of electric boost at low engine speeds.

So, while it doesn't ever run purely on electricity, the electrification tech certainly either brings more punch or takes the load off the petrol engine, depending on how you're driving it.

If you’ve ever driven the previous Model 3 Performance you’ll know that it could well have come with Space X badging (arguably Elon’s more impressive engineering achievement), because it really did thrust rather than accelerate.

But this time the engineers wanted to go all out. Customers appreciated the incremental performance they got from the last Model 3 Performance version, but they told Tesla they wanted more.

With many enthusiasts among Tesla's engineering and development team, they looked to unlock the performance potential of the platform.

So, that meant a whole lot more madness and torque thump. It comes from a new Performance 4DU, an all-new drive unit - featuring an entirely new rear motor that uses bar-winding technology - unlocking 22 per cent more continuous power, 32 per cent more peak power and 16 per cent higher peak torque delivery. 

Overall figures are 380kW and 740Nm, but looking at them written down, they seem big, yet not as big as they feel in this car, as it’s shoving you from a standing start to 100km/h in three seconds flat. 

It feels faster. Sick-making fast, even.

Remember when I said that the C-Class moved to an all-four-cylinder engine range? Well, that's primarily to help it better meet fuel consumption, efficiency and lower emission targets.

On the Australian combined fuel consumption cycle, the C200 manages 6.9 litres per 100km – and that's extremely impressive for a medium-sized sedan weighing almost 1.8 tonnes. So is the fact that the larger-engined C300 returns only 0.4L/100km more at 7.3L/100km. Fitted with a 66-litre tank, these numbers suggest that the former can average nearly 960km between refills while the latter can manage just over 900km.

These figures translate to averages of 157 and 164 grams per kilometre of carbon dioxide emissions respectively. On the flipside, both these Euro-6 emissions rated engines require 98 RON premium unleaded petrol to deliver their best.

So much for lab tests. Out in the real world, we drove both cars for several hundred kilometres on a hot summer's day, from inner Melbourne during peak-hour traffic, to some great curvy rounds out in central Victoria, featuring some tight corners and ample opportunity to really stretch both cars' legs.

Over these routes, we averaged an indicated 8.4L/100km in the C200 and – astonishingly – 7.4L/100km in the C300. Yes, the larger and more powerful engine proved more economical.

Clearly, along with the advanced aerodynamics, engine stop/start system and 48V mild-hybrid tech, all that downsizing works. No wonder Mercedes deemed it unnecessary to bother with diesel engines for this generation C-Class.

Despite being heavier and gruntier, Tesla claims the new Performance Model 3 manages to be more efficient than the one it replaces, albeit delivering just a two per cent reduction in energy consumption. Claimed energy usage is 16.7 kWh/100km.

Tesla claims a total range of 528km on the WLTP, which is obviously going to drop if you drive it the way its makers clearly intended.

Using a Tesla Supercharger, you can add 228km in 15 minutes and... that's all Tesla will tell us. There are no official figures available for how long a full charge takes, on either a Tesla charge or a home wallbox of your own.

There has been a philosophical shift in how the C-Class is presented.

Even with their standard-in-Australia AMG Line package, the regular grades like the C200 and C300 are now leaning into the brand's luxury heritage, while the BMW-baiting sports sedan versions will be left to the coming AMG versions.

And this in turn profoundly informs how the W206 drives.

Even with the optional Sports Pack on 19-inch wheels, the C200 as tested finally feels like a premium midsized sedan experience. Muted at start up, the 150kW/300Nm 1.5L turbo steps off the line smartly and smoothly, its nine-speed auto shifting effortlessly through the gears to keep the engine feeling lively and lusty.

Around town it's easy to mistake the engine as a larger-capacity unit, since throttle response is instantaneous, with little to no lag detectable. It's a strong start for a base powertrain, especially as the C200 settles into a relaxed cruise at freeway speeds. Cycling through the driving settings also reveals how feisty the 'Sport' mode is.

But the 1.5L's lack of size becomes obvious the moment you need to overtake quickly, or when a quick squirt of acceleration up a hill is required, because the engine needs plenty of revs to approach that 6100rpm power peak. While still pretty brisk in these situations, it's also fairly vocal too, with a sense of having to work hard to maintain momentum.

Switching to the C300 highlights how much better suited the 190kW/400Nm 2.0L turbo is to highway driving, leaping forward with much more force and conviction, across the entire performance spectrum. In every metric, this is a better choice – throttle response, mechanical refinement, cruising ease. And the fact that the onboard computer showed less fuel consumption cements our preference for the larger-hearted C-Class.

In fact, both models possess a chassis that feels like it could do with a whole lot more power. Light and tight around town, the steering weighs up nicely at higher speeds, with a linear and reassuringly planted feel. The same also applies to how confident and controlled the Mercedes feels through fast, tight turns, yet settles into a relaxed and comfortable tourer along long, straight stretches of road.

It's a pity, then, that such dynamic agility and prowess doesn't really involve the driver, since the steering feels quite isolated from what's going on underneath; for the vast majority of C-Class buyers, that's fine. But, as a quick spin in any latest BMW 3 Series or Jaguar XE will reveal, there isn't an intimate, two-way connection going on here. That's probably going to be reserved for the AMG models.

Our C200 rode on bigger wheels and steel springs, while the C300 was fitted with optional adaptive dampers. In the previous-generation C-Class, the differences would be stark: a busy and jittery ride in the former, compared to soft yet still unsettled suspension in the latter.

That's all ancient history now, as even the 'passively' suspended C200 now isolates its occupants from the rough and tumble of our inconsistent roads. Still firmish, but no longer harsh.

And the C300 with adaptive dampers seems downright plush by comparison, while offering the driver personalisation options within the aforementioned driving models to tailor the steering, performance and engine sound settings that best suit the prevailing mood.

Too bad there's some road and tyre noise intrusion heard inside when driving over coarse bitumen roads. This is a common pitfall amongst German vehicles in Australia.

Still, it doesn't detract from the fact that the whole chassis set-up can at-last cushion and cosset occupants like, well, a mini S-Class.

Which is the whole point of the W206 C-Class. It now majors on comfort and reassurance like the better Mercedes-Benz models used to, while still being suave and sprightly enough to be a memorable – if not over-exciting – drive.

As a result, the C300 especially is a much-more likeable car than past iterations. Just remember to tick the adaptive damper option for the most optimal experience. Job well done, Mercedes.

Very occasionally, one drives a car that makes the human body feel inadequate to the task. I would have worried that I’m getting old, that my body is simply too flubby and my brain too broken, to cope with the kind of wild acceleration and brutal g-forces the Model 3 Performance delivers.

But, fortunately, I had a videographer in the passenger seat, a much younger man who loves fast cars, and he kept threatening to vomit when I drove it hard, too. 

I’ve driven quite a few cars that you can use make your passenger sick, or hurt their necks - one obvious competitor in the shape of a Porsche Taycan Turbo S comes to mind - but it’s very rare that a vehicle is so intense it can make you, the driver, feel bilious.

Yes, you do bring this on yourself, by choosing to push this Performance anywhere near its limits through particularly sharp and intestine-shaped roads like the canyons outside Malibu Tesla chose to launch it on. 

On longer, sweeping bends it was far more of a joy, and less physically punishing, but in the tight stuff it often felt like corners were being thrown at you, as if you were driving behind the Millennium Falcon and being pulled along in its wake.

The brakes, special new sporting ones with track-ready pads, were up to the task, even though it often felt like they couldn’t possibly pull you up from the speeds you were doing.

And yes, it was entirely my fault that the very first time I even gently prodded the throttle and it launched me ahead past a California Highway Patrol officer, that was my fault too. Three minutes into the drive, holding an American fine, I had already deduced that perhaps this car was too fast for my own good.

But lots of EVs are fast in a straight line, you’re really comparing the length and depth of your “oooophhh” sounds at this point, but where this one succeeds is by being a lot better in the handling and ride and cornering departments than most.

Tesla’s stated goal with this car was to move beyond straight-line speed, to become more than a one-trick pony, and to do that it’s given the Performance a stiffer structure overall and updated the springs and stabiliser bars. 

Aerodynamic changes have reduced drag by five per cent, delivered a 36 per cent lift reduction, and a 55 per cent improvement in front-to-rear lift balance.

Tesla’s own, in-house version of adaptive dampers, not an option but included in every Performance, work with the car’s 'Vehicle Dynamics Controller' through its various modes - 'Insane' and 'Track' being the most… ludicrous - to immediately respond to driver inputs. 

The Performance rides well on LA’s awful concrete freeways but feels absolutely nailed down when you attack even a bumpy driver’s road.

This version also has a lot more power going to the rear wheels, to help it feel more sports-car playful and to fire out of bends the way an enthusiast’s car should. And make no mistake, I met them, the people behind this car are serious driving enthusiasts (although they demur, slightly, on whether their boss is one).

Track mode will allow some serious adjustability, drifting ability and fun, so the kind of people who want to hurl around a racing circuit in silence will love it.

Perhaps the only let downs are that it still feels a bit austere inside, just not very special, and that the steering is just a bit digital, soft and uninvolving, compared to the cars they clearly benchmarked against - BMWs and Porsches. 

Tesla provided no information about safety for the Performance Model but it is assumed it will be unchanged from a standard Model 3.

Aside from Autopilot that means auto emergency braking, lane keep aids, and instead of blind-spot monitoring, it gets the surround radar view and blind-spot cameras when you indicate.

The latest Model 3 has an additional centre airbag for a total of seven, as well as additional bolstering where the doors meet the body in response to requirements in its American home market.

It should be able to carry its maximum five-star ANCAP safety rating, which the original version achieved in 2019.

Kudos to Mercedes-Benz for being the first luxury manufacturer in Australia to offer a five-year/unlimited kilometre warranty – matching most other mainstream makers. Lexus and Audi have only recently followed suit.

A five-year roadside assistance subscription is also included. Service intervals are 12-monthly or at every 25,000km, whichever occur first.

Additionally, a four-year capped price service plan is available, at $550 for the first year, $900 for the second, $1000 for the third and $2450 for the fourth, totalling $4900.

Alternatively, buyers can also choose three pre-purchase service plans to save a bit of money, but these must be bought prior to the first service.

Again, we've been asked to assume the Performance will come with Tesla's standard four-year/80,000km warranty and roadside assistance. And that the battery and drive unit will fall under an eight-year/192,000km warranty, whichever comes first.

Tesla says it monitors its cars to ascertain when they need servicing, and so it is based on a case-by-case situation. Every 12 months/20,000km is recommended for a general check-up, and includes tyre rotation.

Wiper blades, brake fluid and cabin air filters need replacement every two years while the air-con service is every six years.

Of course, there are no oil changes, filters or spark plugs to replace, and even brake pad wear is less than on an ICE vehicle because of the regenerative braking system. Although it will likely be higher in the Performance variant.