This is our best look yet at the all-new Mercedes C63 AMG. Our spies spotted this close to production range-topping C-Class model testing on the road in Germany, just days after the new C-Class made its public debut at the Detroit Motor Show.
Although it's expected to retain the C63 badge, the new AMG variant will use a newly developed downsized 4.0-litre twin-turbo V8, which should cover 0-62mph in around four seconds. There's no word on power output yet, but a minimum of 450bhp and in excess of 500bhp when specced with the optional performance pack is likely – a substantial hike over the new 425bhp BMW M3.
Despite the heavy body cladding, larger brakes and callipers can be seen behind the alloys, as well as quad exhaust pipes sitting flush with the rear bumper. Flared wheel arches, a sculpted bonnet and a more aggressive grille will be fitted along with and a wider bodykit with large air intakes helping feed air to the twin-turbo V8. Under the skin, there’s also likely to be tweaks to the suspension setup although reports suggest the new C63 will be strictly rear-wheel drive.
Inside, the new C63 AMG will stick with the push interior from the standard model, with the floating TFT screen fitted to the cascading centre console. There’s also likely to be a smattering of AMG badges and carbon fibre trim denoting it as the performance-focused model. Tobias Moers, AMG's product chief, confirmed to Auto Express at the Detroit Motor Show earlier this month that BMW M3 rival is "about a year" away.