Quote:
Originally Posted by masd79
15 seconds at these ranges is a huge diff..
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15s on a 20.8km track though.
The M4 CSL is 110kg lighter than the M4 Competition, here we also have xDrive (+50kg) and Touring (+60kg), so around 220kg more, 40hp less and more powertrain loss.
Michelin claims than the advantage of the Cup2r over the Cup2 is about 0.5s/km, maybe a bit less at Nurburgring but still considerable.
With the same tires, the time would be dangerously close.
Now consider a 4/5km racetrack, not a great deal for the "light" and expensive CSL.