The E63 uses an MCT wet clutch automatic gearbox while the M5 has a DCT dual clutch transmission. Roll racing with the M5's higher redline and quicker shifting transmission favors it against the E63 stock for stock. So why does the E63 make such easy work of it?
It seems the advantage of over 100 lb-ft at the wheels for the E63 once tuned just gives it a much fatter curve. While the new E63 AMG models are heavier due to the addition of 4Matic all wheel drive the lighter rear wheel drive E63's have lower drivetrain losses making them the stronger roll on racing option.
There is no denying what happens in this race, the E63 is a beast.
2013 E63 AMG
BMC Air Filters
Renntech Intermediate Tune
630whp/735wtq SAE Dynojet 224
2014 BMW M5 BMS Shop Car