Well teh Hamann 5 series does seem to be a bit of an animal. 6.1 V12 with 450bhp and a top speed of 311kph (192mph). wess says he slipped it into sport but according to link posted by EIL132 they come with a 6 speed manual box and not with a auto.

EscCos replica to a Hamann 5 is a bit of a jump though and I dread to think what the insurance and purchase costs would be on one