Audi RS6
Audi RS 6

In 2003 Audi introduced their answer to BMW’s E39 M5, the RS6. This AWD (all wheel drive) twin turbo V8 450 hp (at 6400 rpm) sports sedan definitely answered BMW’s monster sports sedan. The Audi RS6 was claimed by many to have beaten the famed BMW M5 with its exceptional handling and speed (0-60 mph in 4.6 seconds). The only draw back (to me at least), was the Audi RS6 was only offered with a 5-speed Tiptronic automatic transmission, definitely should have been offered with a optional manual 6 speed transmission.