BMW 6 Series
The BMW 6 Series is a range of executive coupés produced by the German automaker BMW.
The first was the E24, being derived from the first generation 7 Series, the BMW E23. The E24 was launched in 1976 to replace the 3.0CS & 3.0CSi (E9). In 2003, 14 years after production ceased, BMW released the all new E63/E64 which was available as a coupé and convertible, based on the chassis of the E60 5 Series sedan. Models were the 645Ci (later replaced with the 650i) and the 630i, while the highest performance model is the BMW M6. The third generation F12 and F13 6 series was released in 2011 for the 2012 model year, sharing a platform and some engines with the 7 Series (F01) and 5 Series (F10), and introducing a four-door coupé (fastback sedan) style.
The BMW 8 series is sometimes regarded as the spiritual successor to the E24 6 Series, being also available as a "CSi", however it had a substantially higher price point and performance than the preceding 6 Series.
E24 (1976–1989) 
|Body style||2-door coupe|
The original 6 Series was launched in August 1976 as the successor to the E9 coupés, namely the 2800CS, 3.0CS and 3.0CSi. The new E24 chassis was safer than that of the E9, meeting new United States federal crash and rollover standards. This car had a 3210 cc engine with 197 PS (145 kW). In 1978 BMW debuted the 635CSi, with a 3453 cc SOHC, 218 PS (160 kW) engine and a top speed of 222 km/h (138 mph). The 635CSi could reach 100 km/h (62 mph) in 7.4 seconds. The early cars were offered with a 5-speed 'dog-leg' Getrag gearbox. A four-speed automatic transmission became a more common option. The series underwent a significant change with the mid-1982 model, this included a 'normal' pattern 5-speed manual, or the more usual four-speed auto. A luxury version, known as the L6 arrived in the USA in 1987 with leather headliner and trim and other accoutrements. It was available only as an automatic.
In 1984 BMW took the M88/3, a modified version of the M88/1 from the BMW M1 and put it in the E24 chassis, creating the M635CSi, or M6. This had a DOHC 24-valve 3453 cc, 286 PS (210 kW) engine, with a top speed of 255 km/h (158 mph). The M6 also had improved suspension, brakes, and a close-ratio manual transmission.
E63/E64 (2003–2010) 
|Body style||2-door convertible
six-cylinder turbo diesel
7-speed SMG III semi-automatic
The second-generation 6 Series (E63) was produced from 2003-2010, filling the hole in the lineup left since the end of the 8 Series' production. It is based on the underpinnings[clarification needed] of the E60 5 Series. Compared to the 5 Series saloon/touring, the 6 Series coupe/cabriolet has more emphasis on performance as opposed to practicality and it is priced close to the flagship 7 Series saloon.
Car & Driver magazine commented that it "virtually defined the “Bangle Butt,” perhaps the industry's most obnoxious posterior." 
F12/F13 (2011–present) 
|Body style||2-door convertible
4 door coupé (2012)
|Engine||six-cylinder turbo petrol
six-cylinder turbo diesel
V8 turbo petrol
8-speed ZF 8HP automatic
|Wheelbase||112.4 in (2,855 mm)|
|Length||Convertible: 192.8 in (4,897 mm)
Coupe: 192.7 in (4,895 mm)
|Width||74.6 in (1,895 mm)|
|Height||Convertible: 53.7 in (1,364 mm)
Coupe: 53.9 in (1,369 mm)
The engine range consists of turbocharged petrol and diesel engines. The folding top is still cloth (compared to the E93 3 Series convertible which is equipped with a metal roof). The 640i and the 650i are available with all-wheel drive.
F06 Gran Coupe 
The BMW 6 Series Gran Coupe was unveiled in 2012 Geneva Motor Show. It is a four-door saloon to provide a rival to the Audi A7 and Mercedes-Benz CLS. Initially shown as the Gran Coupe Concept in 2010, which was based on the 2007 CS Concept, the Gran Coupe is available in 640i, 640d and 650i models.
Production and sales 
|Calendar year||Total production||US sales|
- monocom gmbh Dingolfing. "BMW Werk Dingolfing". Bmw-werk-dingolfing.de. Retrieved 2010-02-25.
- Mays, Kelsey (2008-06-03). "2008 BMW 650 Review by Kelsey Mays". Cars.com. Retrieved 2012-08-17.
- "BMW to unveil new 6 Series Coupe at Shanghai and New York Auto Shows". Bmwblog.com. Retrieved 2011-07-16.
- Ecob, Kyle (11 December 2011). "BMW 6-series Gran Coupe news and pictures". Evo. Retrieved 12 March 2012.
- "BMW and Paranal". ESO Announcements. Retrieved 9 March 2012.
- "BMW-business-figures-1997-2006". Archived from the original on 17 July 2011. Retrieved 2011-08-10.
- "BMW Group Reports 2006 - Strongest Year Ever". Theautochannel.com. Retrieved 2011-04-03.
- "BMW Group U.S. Division Reports December Sales". Reuters. 2009-01-05.
- "Annual Report 2007". BMW Group. Retrieved 2011-04-03.
- "Annual Report 2008". BMW Group. Retrieved 2011-04-03.
- "Annual Report 2009". BMW Group. Retrieved 2011-04-03.
- "BMW Group U.S. Reports December 2010 Sales - WOODCLIFF LAKE, N.J., Jan. 4, 2011 /PRNewswire/". New Jersey: Prnewswire.com. Retrieved 2011-04-03.
- "BMW Group annual report". Archived from the original on 8 July 2011. Retrieved 2011-07-18.
- "BMW Group Achieves Second Best Sales Year Ever in the U.S. - WOODCLIFF LAKE, N.J., Jan. 5, 2012 /PRNewswire/". New Jersey: Prnewswire.com. Retrieved 2012-01-06.
- Kable, G (14. December, 2004). BMW unleashes M6 supercoupe. Autocar pp. 8–11.
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|Microcar||Isetta 250 / 300|
|Small family car||600||LS/700|
|Compact exec||3 Series||1602/2002||E21||E30|
|6 Series||327*||503||3200 CS||2000C, 2000CS||E9||E24|
|Sports car/GT||M1, 8 Series||E26||E31|
|*made in East Germany as EMW|
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|Small family||3 Compact||E36/5||E46/5|
|1 Series||E81 / E82 / E87 / E88||F20|
|Compact exec||3 Series||E21||E30||E36||E46||E90 / E91 / E92 / E93||F30|
|Executive||5 Series||E12||E28||E34||E39||E60 / E61||F10 / F11|
|Luxury coupé||6 Series||E24||E63 / E64||F12 / F13|
|Luxury||7 Series||E23||E32||E38||E65 / E66 / E67 / E68||F01 / F02 / F03 / F04|
|Roadster||Z Series||E30 (Z1)||E36/7 & E36/8 (Z3)||E85 / E86 (Z4)||E89 (Z4)|
|M||1 Series M||E82 M|
|M3||E30 M3||E36 M3||E46 M3||E90/92/93 M3|
|M5||E28 M5||E34 M5||E39 M5||E60/61 M5||F10 M5|
|M6||E24 M635CSi/M6||E63/64 M6||F12/13 M6|
|M Roadster||E36/7 (Z3) M||E85 (Z4) M|
|M Coupé||E36/8 M Coupé||E86 M Coupé|
|Supercar/GT||E26 (M1)||E31 (8 series)||E52 (Z8)|
|X6||E71 / E72|