AUDI R8 V12 6.0 TDI

The Audi R8 V12 6.0 TDI - We all know and love Audi's V8 and V10 Gas variants, however Audi also came up with this concept. This time round they've added a V12 into the mix for good measure. The concept car is powered by a Race-proven turbocharged diesel engine, this may just be one of the most promising concept car's ever created.

The engine produces a very respectable 500bhp and 738 lb/f of torque. The peak torque is reached at only 1,750 rpm. The car will go from 0 to 62 mph in 4.2 seconds, according to Audi.