Quote:
Originally Posted by Dereks435Coupe
I realize they were in thin air but that was quite the throbbing the IS-F took.
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Not just high altitude, they're in Boulder. That's 5,430 ft of elevation, at a minimum. In all their videos, they appear to be outside of town, which usually means an increase in elevation when you're in the Denver/Boulder area. HP loss at these altitudes is horrible. Fortunately, we can do the math:
loss = (415 HP x 5,430 ft x 0.03)/1,000
By that equation (which I found online), you're looking at around 68 HP loss for the IS-F, knocking it down to the 345 HP range, instead of the sea level 416 HP. Edmunds lists the curb weight for the IS-F at over 3700 lbs. The M235i is about 200 lbs lighter, and has a turbocharger, which all but negates the loss due to altitude. Not to mention, the M235i is only a couple of tenths behind even at sea level because the turbocharged engine has a fatter power curve in the lower RPM range.
Add all this up and the IS-F never stood a chance at that altitude.