it does appear that the rear brakes do work harder than most cars.....my rear brakes got significantly hotter than my 928 did......but the 928 has a stupid low brake bias, so the rears don't do much....
2008 E92 M3, MR, DCT, extended BB leather, loaded!
1988 Porsche 928S4, Guards red/Champagne leather
1989 Porsche 928S4 track beast!!!