BMW M3 Forum (E90 E92) - View Single Post - Regression analysis for kg/hp vs. Ring laptimes

13eastie · 10-27-2007, 10:03 AM

Very interesting.

It's notable that the E46 CSL is the only BMW whose performance exceeds that indicated by the trendline, and by some margin....

Using lucid's formula with power 420hp and mass 1655kg, we get a predicted E92 M3 time of 8:05.

Also the weight/power ratio is 3.94 (almost exactly the same as for the E46 M3 CSL).

The previous M3 was about 7s "softer" than the trendline. How will the new one differ in this regard? And to what extent is the CSL's awesome performance due to differing tyres?

10-27-2007, 10:03 AM	#2
13eastie Lieutenant 35 Rep 563 Posts Drives: 2007 E92 M3 Join Date: Mar 2007 Location: London iTrader: (0) Garage List 2007 E92 M3 Coupé S ... [0.00]	Very interesting. It's notable that the E46 CSL is the only BMW whose performance exceeds that indicated by the trendline, and by some margin.... Using lucid's formula with power 420hp and mass 1655kg, we get a predicted E92 M3 time of 8:05. Also the weight/power ratio is 3.94 (almost exactly the same as for the E46 M3 CSL). The previous M3 was about 7s "softer" than the trendline. How will the new one differ in this regard? And to what extent is the CSL's awesome performance due to differing tyres? Attached Images Last edited by 13eastie; 10-27-2007 at 10:18 AM..
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