Clearly, with a 4.0-litre V8 petrol and two turbochargers, there are cheaper cars to run. Yet, for the performance it offers, and when judged next to rivals from Audi, BMW and Alfa Romeo, the C63 delivers reasonable emission and fuel consumption figures. You can buy manual versions of the BMW M3 or M4 for quite a bit less, but if you want an auto 'box those rivals are barely any cheaper.
On paper, the C63 S looks rather expensive to buy considering it’s only marginally quicker, but the S package is not just about straight-line speed. You’re also treated to an electronic limited-slip differential that makes the car less snappy and more predictable on the limit, larger brake discs that are less prone to overheating, beautiful 19in alloy wheels and supremely supportive AMG performance front seats. Factor in competitive dealer discounts and the S cars suddenly begin to look rather good value for money.
That said, equipment levels are generous whichever C63 you choose. All come with special AMG styling front and rear, a limited-slip rear differential, 18in alloy wheels, an AMG sports exhaust (coupé and convertible models only) and LED headlights. Inside, there are electrically adjustable and heated sports front seats, nappa leather and the top-of-the-range Comand Online infotainment system with sat-nav. Convertible versions also get keyless entry, an electrically operated wind deflector and Airscarf seat heating to keep you warm with the roof down in cooler weather.
All C63s have a collision prevention system that can automatically apply the brakes to help stop you from running into the back of the vehicle in front. There’s also a tyre pressure monitoring device to alert you early if you have a slow puncture and a system that can detect if you’re getting drowsy on a long journey.
This all helped the standard C-Class (the C63 was not tested as a separate model) score impressive marks in its Euro NCAP crash test in 2014. It was awarded the maximum five-star overall rating, with scores of 92% for adult protection, 84% for child protection and 77% for pedestrian protection.
An alarm and engine immobiliser are standard on all versions, while security experts Thatcham Research awarded the C63 five out of five for resisting theft and four out of five for resisting being broken into.
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