Quote:
Originally Posted by swamp2
Correct, 455 hp. Seems a bit aggressively underrated even for BMW but as noted here it matches the official 21.9 second figure from BMW.
Unfortunately, though I just noticed an inconsistency. I reread the graphs posted there and 21.9 seconds appears to be accurate. However for the exact same inputs CarTest reports 21.5 seconds in its tabular format. I verified the difference to be rollout. The quicker times in the tabular view include a US standard 1 foot rollout. The graphs do not include these (more the EU reporting method). Either way all comparison numbers I have reported use rollout consistently again insuring a more apples to apples comparison.
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The acceleration times from 0-40km/h and 0-60km/h in
post #164 also seem over-optimistic for the F8X. It would mean average acceleration of 1.5g and 1.25g respectively. I am not sure street tires would support this on a RWD car.
Could this be explained by some sort of roll-out?