Over the last decade, BMW's product line has enjoyed an unprecedented period of expansion. During that entire time, the 3 Series has remained its consistent sales leader. This year, the highly desirable 328i and 335i Coupes carry over without the exterior and interior revisions given the 2009 Sedans. Still, the Coupe's distinctive looks, available twin-turbocharged in-line six-cylinder engine and authoritative sporting demeanor bode well for these two-door variants, particularly the 335i, in the competition against prime foes like the Infiniti G37 and the Mercedes-Benz CLK 350.