2012 BMW 3 Series

The 2005-2013 BMW 3 Series (E90/E91/E92/E93) is the fifth generation of BMW's compact executive car, introducing a more aggressive, angular design language and a broader range of powertrain technologies. Engine offerings ranged from naturally aspirated four-cylinder and six-cylinder units to the groundbreaking N54 and N55 turbocharged inline-six engines in the 335i and 335is models. Displacements spanned 1.6 to 3.0 liters, with power outputs from approximately 115 to 300 horsepower depending on the market and variant. Transmissions included a six-speed manual and a six-speed automatic, with the seven-speed DCT introduced on the 335is. Rear-wheel drive was standard, with xDrive all-wheel drive available on many models.

This generation was offered in four body styles: the E90 sedan, E91 wagon, E92 coupe, and E93 retractable hardtop convertible, the widest variety in 3 Series history up to that point. The E90 introduced BMW's iDrive infotainment system and a shift toward electronic power steering in later models. The subsequent F30 generation adopted a turbocharged-only engine strategy for mainstream models.

For used buyers, the E90 generation offers a compelling mix of modern features and classic BMW driving dynamics. The N54 engine in the 335i provides strong tuning potential but is prone to high-pressure fuel pump failures, carbon buildup on intake valves, and wastegate rattle on early examples. The N55 engine addressed some of these issues and is generally more reliable. The naturally aspirated N52 and N53 six-cylinder engines are reliable and smooth. Cooling system maintenance and valve cover gasket replacement are routine items. This generation suits buyers who want a modern 3 Series with hydraulic steering feel and a wide selection of powertrains.