For 2009, there's a light restyling of the sheetmetal, a vastly improved iDrive controller system and the biggest news: the introduction this month of a 50-state-legal diesel in the 2009 335d sedan.

The all-aluminum diesel's 265 hp is outclassed by the 300-hp gasoline version, but torque jumps to 425 lb-ft--up 125 lb-ft from the 335i.