We've known Mercedes-Benz was planning to build a new C-Class coupe sometime in 2011, and we figured an AMG variant would come along as well. We now have the first details on the upcoming C63 AMG Coupe, and it's set to be a 'Bahn stormer.
Instead of using the new twin-turbocharged, 5.5-liter V-8 going into Mercedes-Benz's new 63-series AMG cars, the C63 coupe will use the same 6.2-liter V-8 as the C63 sedan. We can't really complain about the engine; although it loses a few ticks in fuel efficiency to the updated V-8, it's certainly a monster. In sedan trim, the V-8 puts out 451 horsepower and 443 pound-feet of torque, but the tuning wizards in Affalterbach plan on increasing output further in the C63 coupe.
"We're looking to up the power beyond that of today's C63 AMG," an inside AMG source told British magazine Autocar. Referring to its natural competitors, the BMW M3 coupe and upcoming Audi RS5, the sourced affirmed that "it's safe to say it will be the most powerful of the three."
Mercedes-Benz AMG officials say the car was intended as a direct RS5/M3 rival. With horsepower output of the coupe reported to be around 480, it will best the Audi and BMW by 30 and 66 horsepower, respectively.
In addition to tackling the competition's power output, Mercedes will update the C-Class' transmission for the C63 Coupe. It won't feature a dual-clutch unit like the M3 and RS5 (the only such M-B transmission is in the SLS AMG), but the C63 coupe will be the first C-Class fitted with Mercedes' new seven-speed multi-plate clutch automatic. The updated seven-speed uses a multi-plate, wet-clutch setup in place of a torque converter. We were impressed with it in the new E63 AMG, and pronounced it superior to BMW's dual-clutch transmission.
Inside reports hint that work on a C63 AMG coupe Black Series, to fill the void left by the discontinued CLK63 AMG Black Series, is also underway. The Black Series coupe, however, would be launched after the SLS AMG Black Series, which is set for a late 2012 launch.
The C63 coupe's targeted competitors are incredible performers, but the new two-door C63 may outpace them. Mercedes-Benz doesn't mention the Cadillac CTS-V Coupe as a competitor, but we wouldn't rule it out. Of the four high-performance coupes mentioned, which would you choose?