The E90 is the currently available generation, which debuted as a saloon (E90) and touring (E91) for the 2006 model year, coupé (E92) and cabriolet (E93) for the 2007 model year[citation needed]. It is completely re-engineered from the E46, including changes to engines, transmission, the passenger compartment, suspension technology, as well as the addition of a host of high-tech features and options. The coupé/cabriolet body is now its own design and no longer derived from the sedan (unlike its predecessors), and is slightly longer and narrower than its E90 counterpart. Major features include Comfort Access, bi-Xenon adaptive headlamps, Active Cruise Control, and Active Steering. The saloon and wagon received a mid-generational facelift for the 2009 model year which comprised changes to the grille, headlights, taillights and trunk. The coupe and cabriolet were refreshed in the 2011 model.

 

 

Currently, twelve engine options are offered, two being part of the new ‘N’ series of BMW inline engines featuring a host of new technologies. Technological innovations such as lightweight magnesium/ aluminum construction, electric water pump, Valvetronic (steplessly variable valve lift), and Double-VANOS steplessly variable valve timing contribute to produce a lighter and more powerful motor than its predecessor, but yield a 15% increase in fuel economy. The E90 also marks BMW’s return to turbo-charging with the introduction of the BMW 335. The N54 engine produces 306 PS (225 kW; 302 bhp) and 400 N·m (295 lb·ft) torque.

 

 

 

The E90 series also sees the return of a retractable hardtop convertible, which last featured on BMW Individual models of the E36 M3.

 

Sales of the E90 have been very strong in Britain. In 2007, a record total of more than 58,000 vehicles were sold and it was the seventh most popular car in Britain.

 

At the end of 2009, a 2011 model 3-series coupe/convertible was unveiled, going on sale in spring 2010. These models feature sharper lines, updated fascias, and expanded interior features. The most significant change is the addition of the new TwinPower Inline-Six engine replacing the preceding Twin Turbo Inline Six on the 335i. "TwinPower" refers to a single, twin scroll turbo. The 328i keeps its naturally-aspirated 3.0 litre Engine.

 

 

 

• Manufacturer: BMW, Avtotor and Brilliance
• Production: 2005–present
• Assembly: Leipzig, Germany; Munich, Germany; Jakarta, Indonesia; Regensburg, Germany; Pretoria, South Africa; 6th of October City, Egypt; Kaliningrad, Russia; Shenyang, China; Chennai, India; Selangor, Malaysia; 
• Predecessor: BMW E46
• Class: Compact executive car
• Body style(s): 2-door coupe (BMW E92), 2-door convertible (BMW E93), 4-door saloon (BMW E90), 4-door touring (BMW E91)
• Layout: Front engine, rear-wheel drive / all-wheel drive
• Engine(s): 1.6L I4; 2.0L I4; 2.5L I6; 3.0L I6; 3.0L Twin-Turbo I6; 4.0L V8; 2.0L Diesel I4; 3.0L Diesel I6; 3.0L Twin-Turbo Diesel I6
• Transmission(s): 6-speed manual; 6-speed automatic
• Wheelbase: 2,761 mm (108.7 in)
• Length: Touring: 4,526 mm (178.2 in); Convertible: 4,587 mm (180.6 in); 2007-2010 Coupe: 181.1 in (4,600 mm); 2011- Coupe: 181.9 in (4620 mm); Saloon: 4,526 mm (178.2 in)
• Width: Touring: 1,816 mm (71.5 in); Convertible & Coupe: 1,783 mm (70.2 in)
• Height: 2009- Touring: 55.8 in (1,417 mm); 2006-08 Touring: 1,455 mm (57.3 in); Convertible: 1,384 mm (54.5 in); 328i Coupe: 1,374 mm (54.1 in); 328xi Coupe: 1,394 mm (54.9 in); 335i Coupe: 1,377 mm (54.2 in); i saloon: 1,420 mm (55.9 in); xi saloon: 1,425 mm (56.1 in)