The undeniable star of the 2008 Detroit Motor Show, the stunning Audi R8 TDi concept features a 6-litre twin-turbocharged V12 diesel engine producing a prodigious 500bhp – 86bhp more than the standard V8 petrol version.
But more important is the torque – the concept Audi R8 V12 TDi has a whopping 737lb/ft of pulling power – more than double the torque of the petrol R8 – slashing the 0-62mph time from 4.6 seconds to 4.2 seconds and a top speed over 186mph
