Used Mercedes-AMG C63 2015-2021 review

Eight cylinders arranged in a V formation, who knew it'd make such an enthralling combination? Well, Mercedes certainly did upon creating the first C63 AMG back in 2008, but the brand (along with the rest of the world) seems to have now moved along: the new Mercedes-AMG C63 has a four-cylinder, plug-in hybrid (PHEV) setup.

So, unless the world changes its mind, this 2015-2021 model could be the very last V8-powered C63. If that's the case, you're looking at a surefire future classic.

Engines & Performance: The V8 in question is a turbocharged 4.0-litre unit bearing 469bhp in its standard form, rising to 503bhp in S guise. In its latter guise, the C63 can accelerate from 0-60mph in just 4.0sec, but the standard C63 isn't far behind, plus both versions sound suitably muscular and raucous.

Perhaps unsurprisingly, the C63 (in fact, every generation) has an automatic gearbox – Mercedes-AMG isn't big on manual gearboxes, unlike the rival BMW M3 which has been available with one in the past. Fortunately, the C63's seven-speed 'box suits the car well, responding swiftly to your inputs and shifting quickly.

Ride & Handling: Particularly in Comfort mode, the C63 makes for a smooth – albeit still a tad firm – and relaxing ride, but of course, that's probably not the reason you'd buy a sports saloon. No, you want entertaining handling and, yes, the C63 has that covered. Its steering is sharp and well weighted, plus there's plenty of grip and composure to lean on.

Still, it's not entirely pinned down – and we mean that in a good way. The C63 has a playful edge to it (although best to find a private track to fully exploit that). It's a predictable edge, too, so you always feel in control – a tad more than you do in the 2014-2018 BMW M3, actually.

Interior & Practicality: Like the larger and more expensive Mercedes S-Class, the C-Class has a very classy-looking interior. Most of the materials feel very premium, but it's not quite as impeccably put-together as it might look. The Audi RS4 Avant features better build quality.

Still, there should be no complaints from anyone up front because there is plenty of space, lots of storage areas and tons of adjustment in the seats and steering wheel to find a comfortable position. Rear leg room is decent too and even the tallest of folks shouldn't find their heads brushing the ceiling. The same can't be said of the boot which is smaller than rivals, has a restrictive opening and is of an odd shape that makes packing for a road trip quite tricky.

Trims & Equipment: The standard C63 comes with Nappa leather upholstery, while the range-topping C63 S adds 19in alloy wheels, grey seatbelts and AMG performance seats.

The S also swaps the standard car's limited-slip differential (LSD) for a more advanced, electronically controlled one for increased traction and grip at the rear.

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You can buy a 2015/'16 Mercedes-AMG C63 for around £23,000, but you'll need to up that to around £28,000 if you fancy the S version. Later cars, say, from 2020, will set you back upwards of £32,000.

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MPG: The C63 S officially averages 34.5mpg, which is a bit optimistic. During our testing, we saw an average of 25.5mpg from one.

Road tax: Examples registered before April 2017 will attract a yearly road tax fee of £385, while those registered after will be charged the flat rate of £190 per year (like every other petrol and diesel car). This goes for the standard C63 and the C63 S.

Insurance and servicing: Even the standard C63 belongs to insurance group 47 (out of 50), so expect to pay a high insurance premium. Equally, set aside a good chunk of money for servicing, particularly if you plan on having it done at an official Mercedes dealer. For two services (and two MOTs) of a 2020 C63, Mercedes quoted us £1584.

Reliability

Owners participating in our 2024 What Car? Reliability Survey have found the Mercedes C-Class to be mostly reliable, maintaining its dependability over several years.

However, some owners reported faults, notably with exhaust gas sensors failing, particularly in cars with less than 50,000 miles, which could lead to costly repairs.

Experiences with Mercedes' dealer network varied, with mentions of high servicing costs at brand dealerships. Costs associated with updating sat-nav maps and consumable parts were also highlighted as concerns for some owners.

Our dedicated reliability page can tell you more about the Mercedes-AMG C63’s common problems.

Shoot for the S if you have the extra budget. It's small improvements, such as the electronically controlled LSD and added power, add up and elevate the C63 from a very good sports saloon to a great one.

Our favourite Mercedes-AMG C63: C63 S

The BMW M3 has long-been the champion of the sports saloon class, but the C63 really gives it a run for its money.

The Alfa Romeo Giulia Quadrifoglio is another great alternative, with its light, agile handling and a snarling V6 under the bonnet – one of the best in the business. Reliability is even more of a concern with that car, though – and that's saying something given the underwhelming result of the C-Class in our latest survey.

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Interested in buying a used Mercedes-AMG C63? Visit our Used Cars For Sale pages to find lots of cars listed at great prices.