similar to the E90 saloon, however the M3 wasn't produced in the estate body style. Several markets outside Europe only offered a small subset of models in the estate body style. In the United States and Canada, the only estate model available prior to 2007 was the 325xi, and then the 328i and 328xi from 2007 onwards. Coupé (E92) In July 2006, one year after the saloon was introduced, the E92 coupé body style was unveiled. Compared with previous generations of the 3 Series, the coupé has more external styling differences to the saloon models. These include the tail-light design (L-shaped on the coupe), more steeply angled headlights and smaller side windows. As per its E46 predecessor, the doors of the coupe are longer and have frameless door windows, the rear seat holds two passengers (compared with a three-person bench for the saloon) with a rear centre console tray and the front seatbelts are on motorised arms that extend from the B-pillar to hand the seatbelts to the driver and/or passenger. The E92 was the last generation to include coupé (and convertible) body styles as a part of the 3 Series range. For later generations, these body styles are marketed as the 4 Series. Despite the E90/E91 being phased out for the F30/F31 after the 2011 model year, the E92/E93 continued through the 2013 model year. It was then succeeded by the F32/F33 for the 2014 model year. Convertible (E93) The E93 convertible was BMW's first model to use a retractable hardtop (folding metal roof), instead of the cloth roof as previously used. The E93 was one of first retractable hardtops in its price range. The "Comfort Access" option allows the roof to be raised and lowered using the key fob. The E93's side windows are 30 percent larger than its E46 convertible predecessor, resulting in a 38 percent increase in visibility. The BMW 3 Series convertible was often priced higher than direct rivals, however reviewers have praised its passenger/boot space (even with the roof down), driving dynamics, weight and chassis rigidity. Engines Petrol Official specifications are as follows: Since the following generation of 3 Series used turbocharged engines for the entire model range, the E90/E91/E92/E93 was the last 3 Series to be available with naturally aspirated engines. In North American, Australian and Malaysian markets the N53 was not used, Instead the entire model range continued to use its predecessor,