|Body and chassis|
|Class||Roadster / sports car (S)|
The Z4 has been powered by a range of inline-4 and straight-6 petrol engines. For the first generation (E85/E86), all of the engines were naturally aspirated. For the second generation (E89), the first turbocharged engine became available and by 2011 the entire range used turbocharged engines.
First generation (E85/E86); 2003–2009)
The E85/E86 is the first generation of the BMW Z4, which was produced from 2002 to 2008. Initial models were in the roadster (E85) body style, with the coupe (E86) body style being added in 2006.
As per the Z3, the Z4 was manufactured solely in Greer, South Carolina in the United States.
Second generation (E89; 2009–2016)
|BMW Z4 (E89)|
|Production||2009–2016, 113,012 units|
|Assembly||Regensburg, Bavaria, Germany|
|Designer||Juliane Blasi (body) and Nadya Arnaout (interior)|
|Body and chassis|
|Body style||2-door coupe convertible|
|Layout||Front-engine, rear-wheel-drive[nb 1] or Front mid-engine, rear-wheel-drive[nb 2]|
|Engine||1,997 cc (121.9 cu in) N20B20 I4
2,497 cc (152.4 cu in) N52B25 I6
2,996 cc (182.8 cu in) N52B30 I6
2,979 cc (181.8 cu in) N54B30 twin-turbocharged I6
|Transmission||6 speed manual
6 speed automatic
7 speed automatic
8 speed ZF 8HP automatic
|Wheelbase||2,496 mm (98.3 in)|
|Length||4,239 mm (166.9 in)|
|Width||1,790 mm (70.5 in)|
|Height||1,291 mm (50.8 in)|
|Curb weight||1,470 kg (3,241 lb) (sDrive30i manual)
1,500 kg (3,307 lb) (sDrive30i auto)
1,565 kg (3,450 lb) (sDrive35i manual)
1,585 kg (3,494 lb) (sDrive35i auto)
The vehicle was originally announced on 13 December 2008. The vehicle was unveiled in 2009 North American International Auto Show in Detroit. Credited as "the first BMW designed by two females," the E89 body was styled by Juliane Blasi, with Nadya Arnaout designing the interior.  This time a coupé-convertible with folding hardtop, the Z4 (E89) was built in Regensburg alongside the (E93) 3-Series Cabrio, likely due to the U.S. plant needing more room for SUV production.
The Z4 moved upmarket, dropping the small four-cylinder base engine. In late 2011 BMW reintroduced a 2.0 litre, 4-cylinder powerplant with twin-scroll turbo (N20 engine variant).
Z4 production ended in June 2016.
Speculation abounds regarding a Toyota-BMW joint venture to create a replacement for the Z4 and a new standard bearer for the long absent Toyota Supra. Rumors include a "Z5" moniker for the BMW sibling, a hybrid drivetrain, and a cloth convertible top. 
Third generation (2018-)
The next-generation BMW Z4 will be showcased at the Monterey Car Week that will be held in August 2017 at Pebble Beach, California.
- "2009 BMW Z4 sDrive35i". www.caranddriver.com. Retrieved 15 August 2017.
- "U.S Press Information: 2009 Z4 Roadster" (PDF). BMW. 13 December 2008. p. 17. Retrieved 14 December 2008.
- "2009 BMW Z4 Review: The New Landshark has landed". Autospies.com. 14 December 2008. Archived from the original on 15 December 2008. Retrieved 14 December 2008.
- "2009 BMW Z4: Hairdressers Rejoice!". Jalopnik. Gawker Media. 14 December 2008. Archived from the original on 17 December 2008. Retrieved 14 December 2008.
- Abuelsamid, Sam. "Detroit 2009: BMW pulls the cover off the new Z4". Autoblog.com. Retrieved 6 September 2011.
- Boeriu, Horatiu. "NYT interviews the BMW Z4 Designers: Juliane Blasi and Nadya Arnaout". BMWBlog.com. Horatiu Boeriu. Retrieved 11 September 2016.
- "BMW Car Designers throughout history". BMWism.com. Retrieved 11 September 2016.
- Taylor, Michael. "Everything We Know About the Toyota Supra and BMW Z5". Road and Track. Hearst Digital Media. Retrieved 11 September 2016.
- "BMW Z4 Jointly Developed With Toyota To Be Shown On August 16". Motoring Junction. 2017-05-31. Retrieved 2017-06-07.
- "More Scans Reveal BMW Z4 from All Angles". World Car Fans.
- "BMW unveils 2010 Z4 roadster ahead of Detroit Auto Show debut". Motor Authority.
- "BMW Z4 Reviews & Specs". JB car pages.
- "2010 BMW Z4 Brochure Scans Leak". Jalopnik.
- "Officially Official: 2010 BMW Z4". Autoblog.
- "2017 New BMW Z4 Exclusive". atvmagblog.
- Inline-six variant.
- Inline-four variant.
Media related to BMW Z4 at Wikimedia Commons
« previous — BMW cars: 1980s–present
|1 Series||E81 / E87||F20 / F21|
|E82 / E88||F52|
|2 Series||F22 / F23|
|F45 / F46|
|3 Series Compact||E36/5||E46/5|
|3 Series||E21||E30||E36||E46||E90 / E91 / E92 / E93||F30 / F31 / F35|
|4 Series||F32 / F33|
|5 Series||E12||E28||E34||E39||E60 / E61||F10 / F11||G30|
|6 Series||E24||E63 / E64||F12 / F13|
|7 Series||E23||E32||E38||E65 / E66 / E67 / E68||F01 / F02 / F03 / F04||G11 / G12|
|Z Series||E30 (Z1)||E36/7 & E36/8 (Z3)||E85 / E86 (Z4)||E89 (Z4)|