We reviewed the BMW M3 Coupe with a manual transmission and the full load of cabin tech back in April, but we couldn't pass up the opportunity to test out another one, this time the 2008 BMW M3 Convertible with the new double-clutch transmission. Although our convertible M3 lacked the cabin tech options, not even having the programmable M button on the steering wheel, it still proved a remarkable car to drive with all the performance capabilities of the loaded version. And we didn't think it possible to improve on the M3's performance, but the double-clutch transmission makes the car even more exciting to drive.