Quote:
Originally Posted by Red Bread
I could see aerodynamics and/or ride height making a difference in the 1/4 mile, but not 0-60. A barn should be only just a little slower than an SR-71 to 60 if they both have the same power to weight (and if the barn has wheels, of course).
I'd guess it all has to do with tires, has someone compared an M Sport X1 28i sDrive to a 428i with similar tires?
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The 428 tested had the M Sport Package, so it would have summer performance rear tires of 255/40-18 vs. the base all-season 225/45-17 tires on sDrive2.8. Maybe the 428 just hooks really well whereas the sDrive2.8 loses time as the traction control system curtails power to combat wheelspin?