Admittedly it isn’t hard to understand why. AMG has always made absolutely brilliant V8s and the 4.0 twin-turbo unit in the C63 S is no different. It’s 503 hp is 59 hp more than the BMW’s MercedesAMG C63’s engine 2. Dimensions and weight. Let’s take a step back and look at the overall physique of these models. The Mercedes-AMG C63 S has an overall length of 187.1 inches. It’s compact enough for agile maneuvers, yet spacious enough inside to sit comfortably. And, having a curb weight of 3,902 lbs it’s not too heavy TheRS6 is 110kg lighter than the E63 S, but on the road it is the Merc that feels sharper and more agile. Audi’s 597bhp and 553lb ft play second fiddle to the Merc’s 604bhp and 623lb ft. Both TheC63 AMG Coupe which shares only its doors, roof, and trunk lid with the base coupe, is an inch and a half wider. Its tires also are wider, by 10mm at both ends. Continuing with the theme, the Theverdict: AMG C63 vs M3 Touring vs RS4 Competition. First place: BMW M3 Touring. The Touring produces a few extra happy hormones neither rival can muster. Second place: Audi RS4 Competition Thefastest figures of 4.99sec and 13.09sec for the 0-100km/h and 0-400m respectively are achieved by simply mashing the throttle from rest with all the electronics off, but to focus purely on the numbers sells the GS F short. Which is just as well, as it trails the C63 to 180km/h by a whopping 2.34sec. MahindraXUV300. Starts at ₹ 7.99 - 14.74 L. compare. Compare Mercedes-AMG E 63 S vs Mercedes-AMG C 63 to know which is better. Detailed cars comparison on Mercedes-AMG E 63 S vs Mercedes-AMG C 63 compare price, specs, mileage, performance, reviews and other features on car&bike. TheMercedes-AMG C63 is one of the best all-around high-performance luxury machines on sale today. As a longtime rival to the BMW M3 and M4, Affalterbach and Munich continue to fight for bragging O9Nc.