The BMW E90 automobile platform is the fifth generation of the BMW 3 Series range of compact executive cars. The car is also available as a station wagon/estate (designated as E91), coupé (E92) and coupé cabriolet (E93). A high performance BMW M3 version of the E90, E92, and E93 is also available. It is the successor to the E46 platform, and was launched in March 2005. The E90 is slated to be replaced in 2012 when a new 3 Series body is introduced.
In 2002, Head of Production Norbert Reithofer and Development Chief Burkhard Goeschel halved the standard BMW time it took to reach full production of the E90 from six months to three.[1] First marketed in March 2005, it had quickly become BMW Group's best selling automobile worldwide by the end of the year with 229,900 vehicles delivered.[2]
In 2002, Head of Production Norbert Reithofer and Development Chief Burkhard Goeschel halved the standard BMW time it took to reach full production of the E90 from six months to three.[1] First marketed in March 2005, it had quickly become BMW Group's best selling automobile worldwide by the end of the year with 229,900 vehicles delivered.[2]
E46 comparison
The E90 sedan is 49 mm (1.9 in) longer, 78 mm (3.1 in) wider and 9 mm (0.4 in) taller than its predecessor (E46). The wheelbase is longer by 35 mm (1.4 in). In previous 3 Series models, space for passengers and luggage were common criticisms, however, BMW made significant improvements to the poor leg and headroom in those previous models. BMW's brochure even highlights, 'Now long legs can be enjoyed even by the people who have them'. Large amounts of aluminium were used in the body work and suspension in an attempt to keep the weight close to previous models; however the E90 weighs between 50 lb (23 kg) and 300 lb (140 kg) more than comparable older models. The N54B30 engine is made of aluminum, while the N51 and N52 engines largely consist of magnesium. The piston sleeves are steel and have copper coating.
The E90 also introduced run-flat tires to the 3 Series range. Consequently, cars with run-flats are not equipped with a spare tire. While these theoretically improve performance and handling, run-flats cost much more to replace and give a harsher ride.
The E90 sedan is 49 mm (1.9 in) longer, 78 mm (3.1 in) wider and 9 mm (0.4 in) taller than its predecessor (E46). The wheelbase is longer by 35 mm (1.4 in). In previous 3 Series models, space for passengers and luggage were common criticisms, however, BMW made significant improvements to the poor leg and headroom in those previous models. BMW's brochure even highlights, 'Now long legs can be enjoyed even by the people who have them'. Large amounts of aluminium were used in the body work and suspension in an attempt to keep the weight close to previous models; however the E90 weighs between 50 lb (23 kg) and 300 lb (140 kg) more than comparable older models. The N54B30 engine is made of aluminum, while the N51 and N52 engines largely consist of magnesium. The piston sleeves are steel and have copper coating.
The E90 also introduced run-flat tires to the 3 Series range. Consequently, cars with run-flats are not equipped with a spare tire. While these theoretically improve performance and handling, run-flats cost much more to replace and give a harsher ride.
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