The three letters AMG are legendary not only in Mercedes circles, but more generally in the world of car aficionados. I told the story of Messrs. Aufrecht and Melcher from Grossaspach on this blog back in 2021, including that AMG these day is fully owned by Mercedes, who in my view has diluted the heritage of the company at an increasing pace, fitting AMG logos on so many models and engine types that you quickly lose count. Unfortunately they’re not the only ones, as down in Munich, the “M” inflation at BMW is just as noticeable.
Long-term readers may also remember that I was the very happy owner of a W212 MB E63 AMG estate a few years ago – with hindsight, probably the best car I ever owned. The W212 didn’t have the legendary, 6.2 litre, naturally aspirated V8 of its predecessor, the W211, but the bi-turbo, 4.4 litre V8 was still a fantastic engine, and contrary to the W211, it got the power down on the road thanks to four-wheel drive, a pretty decisive argument for me, living in an Alpine country (and probably elsewhere as well if you want to keep you tire budget under control).
The W213 succeeded the W212 in 2017 and in the AMG E63 version featured a slightly smaller, 4-litre V8 that I haven’t driven but only heard good things about. That engine also made it into the smaller C63 (as well as into other models), but contrary to the E-class, the smaller sibling was rear-wheel drive only. Had that not been the case, given our needs for space have diminished with the children moving out, I would most probably have parked one in my garage by now.
What all these models have in common is that they were “real” AMG cars. As such, the chief engine engineer’s signature is found on the engine block and the whole car has been thoroughly reworked by the AMG team at Mercedes, rather than only the turbo pressure being turned up on a four-cylinder (as we’ll see later…) and various AMG logos being fitted. And of course, under that signed engine block, there’s eight cylinders, because ultimately, a V8 is a large part of the true AMG experience. And that makes the decisions taken by Mercedes on the new C63 AMG, launched in 2023, totally incomprehensible.
The development of the new C63 obviously started a few years ago when the whole car world was set on downsizing and electrification faster than you can say “where will all the rare materials needed come from?”. Mercedes was at the time very much at the forefront of these developments with the ambition to be fully electric by 2030, something they’ve stepped away from today. In that spirit, you have to believe that it was too early to fully electrify the C63 – but surely no one would mind a bit of downsizing, right?
As it turns out, the answer to that is a resounding yes. Because the reception the new C63 has received is no doubt the worst any AMG car has ever had, and probably the worst of any other Mercedes model as well. What the engine builders over in Stuttgart have done is to basically take half of the old V8, i.e. make it a 2-litre 4-cylinder, out of which they’ve managed to squeeze 469 hp, thanks to the biggest turbocharger this side of the moon. They’ve then combined that engine with a 150 Kw electric motor on the rear axle, for a total power output of 671 hp and around 1050 Nm of torque. And yes, this time the C63 is indeed all-wheel drive…
Those numbers are obviously complete bonkers, and there’s no doubt the engine is an engineering masterpiece. Until quite recently, that kind of power required a far larger volume, and achieving a seamless collaboration between such a high-pitched engine and quite a powerful electrical motor is no small feat. I take my hat off to the engineers that pulled this off, but at the same time, I’d be very hesitant to pick up such a complicated construction three-four years down the line when it’s out of warranty, as the list of things that could go wrong is a long one.
Unfortunately though, things don’t even need to go wrong for the engine to cause disappointment on a scale rarely seen. Sure, there’s enough power, but somehow Mercedes was so deep into electrification dreams that they confused the massive power output of EV’s with character. Of which all AMG V8’s have had plenty, and the 2-litre four-pot has none. It sounds terrible, doesn’t deploy power anywhere close to how a V8 would, and also makes you hit the limiter rather frequently because they hybrid construction delivers power too fast for you to react.
There’s other problems too. Most decent hybrids these days will manage at least 60-70 km on electricity alone, if not more. The C63 will at best do 10 km, because although its electric motor is strong, it only has a 6 KwH battery. Still, that doesn’t prevent it being around 200 kg heavier than its competitors. In addition, there was apparently no better way to integrate the battery than to create not one, but two bumps in the luggage compartment, heavily reducing both its volume and its practicality. Then, there’s the price, where the C63 starts at around EUR/USD 20.000 more than both the Audi RS4 and the BMW M3 Touring, its most natural competitors.
It’s thus no big surprise to learn that the C63 isn’t selling. Exact numbers are hard to come by, but it seems it’s bad enough for there to be internal discussions at Mercedes about pulling the car from the line-up. I don’t think that will happen, but you can bet what you have dear that the next C63 won’t have a four pot under the hood, and given the updated E63 hasn’t been presented yet, you could well imagine discussions going on here as to what to do with it. Because if this story needed to get any crazier, the variant below the C/E 63 is the 53, currently a hybrid as well with around 600 hp combined, however with the petrol unit being a six-cylinder engine. Go figure.
Back in 2016, Porsche tried to pull a similar stunt with the Boxster, replacing the flat six with a four-cylinder engine, all in the name of downsizing. That car got similar reviews to the current C63 and it took no more than three years for the flat six to make a return. My bet is that it’ll take less than three years this time around, and maybe this time, this can be a lesson for Mercedes for the future: either you build true AMG cars or you don’t. And if you understand who the buyers of those cars are, you would know better than to mess with that V8!










