The BMW 3 Series fifth generation spans four body codes: E90 (sedan), E91 (Touring estate), E92 (coupé), and E93 (convertible). Production ran from December 2004 through October 2013, with the sedan ending first in October 2011 and the coupé and convertible continuing until mid-2013. This was the last 3 Series to offer naturally aspirated inline-six engines alongside turbocharged variants, and the only generation where the M3 used a V8. All four body styles share a 2,760 mm wheelbase. For full chassis genealogy, see the BMW 3 Series (E90) Wikipedia article.
The sedan (E90) and Touring (E91) received their mid-cycle facelift in September 2008. BMW calls this the LCI, for Life Cycle Impulse. The coupé (E92) and convertible (E93) received their LCI for the 2011 model year. The update revised front and rear lighting, bumper trim, and introduced xDrive all-wheel drive as a factory option across several variants. Before the LCI, all-wheel drive models carried the "xi" or "xd" suffix; the "xDrive" naming standardised at the update. Body kit fitment at the front can be LCI-specific: pre-LCI and post-LCI bumpers differ in mounting geometry and light apertures on some kits. Confirm your build year before ordering.
The 335i is the variant most valued by the tuning community. Its N54 twin-turbo engine responds to software tuning with power gains far beyond the cost of the work. Stage 1 software on a stock N54 consistently produces 350 PS or more from a factory-rated 306 PS base. The N55 replaced the N54 in 2010 with a single twin-scroll turbocharger; both produce the same quoted output but the N54 remains the preferred base for high-power builds. At the other end is the M3's S65 V8: naturally aspirated, 4.0 litres, individual throttle bodies for each cylinder, 12.0:1 compression, 8,400 rpm redline, 420 PS and 400 Nm. The S65 won the International Engine of the Year award in its displacement class every year from 2008 to 2012. It is the only generation of M3 to use a V8, and BMW has not repeated the format since.
The E92 coupé is the primary body kit platform in this family. Wide-body kits for the E90 sedan also exist, including WTCC-inspired overfender designs referencing the 320si homologation car produced in 2,600 units for the 2006–2009 World Touring Car Championship. The E91 Touring sees the least demand for body kit work, but the shared front-end structure means front bumpers, bonnet aero, and side skirts designed for E90/E91 also fit the Touring. E90 and E91 share front-end geometry but not rear quarter panels. E92 and E93 share a different front-end with each other but differ significantly from E90/E91 at the rear. All four body codes require their own rear bumper and rear arch parts. Order by body code and confirm the specific parts list before purchasing.

