Originally Posted by HBspeed
I'm sorry buy your weight figures are way off. Therefore your power to weight ratios are also way off.
DIN curb weight (preliminary as they call it):
E30 M3 at 1,225 kg = 2,701 lbs [5.57kg/hp] +0.11kg [% generational kg/hp improvement over previous model]
E36 M3 at 1,385 kg = 3,053 lbs [4.84kg/hp] -0.27kg [-13%]
E46 M3 at 1,474 kg = 3,250 lbs [4.30kg/hp] -0.28kg [-11%]
E92 M3 at 1,605 kg = 3,538 lbs [3.82kg/hp] +0.02kg [-11%]
Using the DIN curb weights you posted to correct kg/hp ratios, there are differences yet the general pattern of generational kg/hp improvement remains.
It still appears that in order for the next generation M3 to match the historical generational kg/wt ratio reduction average (i.e. 11.67%), some output of 470hp will be needed with DIN curb weight remaining the same 1,605kg that it is for the E92M3.