Click here to enlarge Originally Posted by Alpina_B3_Lux Click here to enlarge
Interestingly, the AC Schnitzer M6 GC with 677hp at the crank (dynoed) was 4 seconds slower than the 649hp M5 Competition (probably due to the better ABS/DSC tuning of the M5 and slightly lower weight) around the Nürburgring.
Way too big of a difference to be a coincidence.

Click here to enlarge Originally Posted by Alpina_B3_Lux Click here to enlarge
There were quite a few complaints from readers that these tests then do not have any value as the real customer who buys a car like this will not get a prepared press car with a different remap.
They are correct.