i have the rfactor file for a e46 m3 somewhere i could check what's faster in terms of ratio. quarter mile i think 4.10 might need the extra shift.
the roadster is definitely slower stock (bmw made sure, they put 3.15 diff with 5 spd) but with the 3.73 its considerably quicker and fun as shit off the line. i still think i prefer my newly purchased e46 m3. it is a lot more on insurance though
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Hot: 2001 Estoril M Roadster
ZCP 19's michelin supersports, ZHP knob, JL 8W3
Cold: 2002 TiAg M3 6mt ZCP 19's michelin supersports, deoranged, dechromed, led tails, ZHP knob, UUC SS v3, GROM, OEM 18's w310's,
Fun: 2006 YZF-R6, black