SEXY METRICS GANG!
Z06, advertised@505hp, actual power measured@610hp (high-revving 7.0L n/a V8)
SLR, advertised@617hp, actual power measured@689hp (high-revving 5.4L s/c V8 with 0.9 bar/boost)
Both cars make more power than claimed, but the Z06 makes over 100 hp more than claimed versus the SLR at around 70 more than claimed. Not to mention there is AN 851-POUND GAP between these two beauties (in this simulation)!
BUT there is a catch... the Z06 does make almost 550 hp with factory cats and exactly 610 hp with a straight pipe exhaust system.
The two cars are even equal on the track, which is impressive considering the SLR's age and weight AND transmission! The SLR was far more track-ready than I originally thought.
Also, in my estimations, the Z06 is 1/10th of a second quicker to 300kph than the SLR ;-)