Yeah, that US test was weird, didn't realize there was a potential instrumentation issue w/ the germany tests. My understanding is that there was some belief (not sure there is any corroboration on this other than someone on these boards mentioning) that the testing temps in Germany were low (SAE correction may not fully negate) and there was a greater difference at the time between Euro and US software at that time. The C&D and R&T tests for those MTs in germany were some of the fastest times w/ any transmission. Also, given the MT is very tempermental to launch, might have also been a few situations of great launches where the higher torque in 1st gear may have helped if there was perfect traction.
Originally Posted by mdosu
those times were the European M3 coupe launch car, the test was conducted in Germany, and I think they didn't use the precise equipment to measure it. 12.5s 114mph is C63 level speed.
R&T got a 13.0s quarter with the M3 Sedan 6 MT in a California test a few months later. It was the only car that couldn't crack the 13s mark (against the C63, RS4, and ISF)
here's the link: