again guys, without more information about the car, materials, etc., it's very hard to determine exactly how much performance advantage a CF roof has over a steel roof.
Performance gain? Definitely. But NOTICEABLE performance gain? Hardly. Marketing? More than you can imagine.
2011 E92 M3 DCT
1991 Spec Miata
2008 E92 M3 DCT - KW Competition 2-way / Brembo 365 BBK / OMP ARS racing seats / rear seats delete / GT4 aero / AiM EVO4 data logger / SmartyCam racing camera
2008 E92 M3 6MT
2008 E92 335xi