BMW Z4 (E89)

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BMW Z4 (E89)
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Manufacturer BMW
Production 2009–present
Assembly Regensburg, Bavaria, Germany
Class Personal luxury car
Body style 2-door roadster
Layout FMR layout
Engine 1,997 cc (121.9 cu in) I4
1,997 cc (121.9 cu in) twin-turbocharged 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 DCT
8-speed ZF automatic {2012- )
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)

BMW E89 is the chassis code of the second generation of BMW Z4. It now has a retractable hardtop like the Mercedes SLK replacing the previous roadster and coupé versions for the 2009 model year.

The new model was officially announced on 13 December 2008.[1][2][3] The vehicle was unveiled in 2009 North American International Auto Show in Detroit.[4]

Contents

Technology

Since the new Z4 now has a retractable hardtop, it no longer comes in separate roadster and coupé versions. The two-piece, electro-hydraulic retractable hardtop in lightweight aluminium shell can be folded up or down in 20 seconds automatically.[5] In the open state, the boot capacity is 180 liters (if closed: 310 l).

In the Z4 sDrive35i, the new 7-speed double-clutch gearbox is used. In the 23i and 30i a six-speed sports automatic transmission with Steptronic is offered. Fitted as standard is a 6-speed manual transmission.

EfficientDynamics regenerative braking is standard in most regions. The Drive Dynamic Control is standard, which include NORMAL, SPORT, SPORT+ modes. Optional Adaptive M Sport Suspension adds electronic damping control.

The hand brake is electro-mechanically operated.

Design

The new roadster features a completely revamped interior designed by Nadya Arnaout, and exterior designed by Juliane Blasi.

Differences from the previous

Compared to the previous generation Z4, the new vehicle has grown 148 mm (5.8 in) longer, 9 mm (0.35 in) wider,[6] 2.5 mm (0.098 in) in wheelbase, and is significantly heavier, adding between 150 kg (330 lb) and 235 kg (520 lb) in unloaded weight, when compared to the previous model.[1]

The E89 is not produced, as its predecessor, in the Spartanburg, South Carolina manufacturing facility, but in Regensburg.It is also the first BMW roadster to use iDrive.[7]

Specifications

Engines

Model Years made Engine Code Engine Type Power@rpm Torque@rpm
Petrol engines[8]
sDrive20i 2011- N20B20 1,997 cc (1.997 L; 121.9 cu in) I4 184 PS (135 kW; 181 hp)@5000 270 N·m (200 lb·ft)@1250-4500
sDrive23i 2009- N52B25 2,497 cc (2.497 L; 152.4 cu in) I6 204 PS (150 kW; 201 hp)@6400 250 N·m (180 lb·ft)@2750
sDrive28i 2011- N20B20 1,997 cc (1.997 L; 121.9 cu in) I4 245 PS (180 kW; 242 hp)@5000-6000 350 N·m (260 lb·ft)@1500-4800
sDrive30i 2009- N52B30 2,996 cc (2.996 L; 182.8 cu in) I6 258 PS (190 kW; 254 hp)@6600 310 N·m (230 lb·ft)@2600
sDrive35i 2009- N54B30 2,979 cc (2.979 L; 181.8 cu in) I6 twin turbo 306 PS (225 kW; 302 hp)@5800 400 N·m (300 lb·ft)@1300-5000
sDrive35is 2010- N54B30 2,979 cc (2.979 L; 181.8 cu in) I6 twin turbo 340 PS (250 kW; 340 hp)@5800 450 N·m (330 lb·ft)@1400-4500 (Overboost: 500 N·m (370 lb·ft))

The BMW Z4 sDrive35is also comes as standard with an M Sports Package including the M Aerodynamics Package and adaptive M Suspension featuring electronically controlled dampers.

US models include sDrive30i (until 2011) sDrive 28i (2012-) and sDrive35i.

Transmissions

Model Years made Standard Optional
sDrive23i 2009- 6-speed manual 6-speed sport automatic
sDrive28i 2011- 6-speed manual 8 speed ZF automatic
sDrive30i 2009- 6-speed manual 6-speed sport automatic
sDrive35i 2009- 6-speed manual 7-speed dual clutch sport automatic
sDrive35is 2010- 7-speed dual clutch sport automatic

Performance

Model Years made 0–100 km/h acceleration (sec) Top speed[9]
International models
sDrive23i 2009- 6.6 manual, 7.3 automatic 242 km/h (150 mph) manual, 239 km/h (149 mph) automatic
sDrive30i 2009- 5.8 manual, 6.1 automatic 250 km/h (160 mph)
sDrive35i 2009- 5.2 manual, 5.1 DCT 250 km/h (160 mph)
sDrive35is 2010- 4.8 DCT 250 km/h (160 mph)
US models
sDrive30i 2009- 5.8 manual, 6.1 automatic 150 mph (240 km/h) with Sport Package
sDrive35i 2009- 5.2 manual, 5.1 DCT 130 mph (210 km/h), 150 mph (240 km/h) with Sport Package
sDrive35is 2010- 4.8 DCT 155 mph (249 km/h)

Safety

All BMW Z4 have as standard safety equipment: ABS including emergency brake assist and CBC (Cornering Brake control), pretensioner and belt load limiter, and ESP with ASR. Furthermore, they are equipped with four airbags (driver/front seat passengers and two side airbags). The dynamic stop light feature has two stages, indicating how strongly the brakes are being applied. For normal braking, the main light element blinks, as well as blinking just before the vehicle comes to a standstill. Finally, two roll-over bars behind the seats and a reinforced windscreen protect occupants in case of roll-over.

BMW Z4 GT3

BMW also offers the BMW Z4 in motorsport, with a FIA GT3-specification car available to private teams.[10] While the production version of the BMW Z4 has a six-cylinder engine, the GT3 car is powered by a 4.4-litre eight-cylinder engine derived from the BMW M3, which produces approx. 515 PS (379 kW; 508 bhp). The weight of the BMW Z4 GT3 is approx. 1,190 kilograms (2,624 lb). In its first year of racing, the car proved competitive in the FIA GT3 European Championship as well as emerging victorious from the Dubai 24 Hour endurance event. [11]

References

  1. 1.0 1.1 "U.S Press Information: 2009 Z4 Roadster" (PDF). BMW. 2008-12-13. p. 17. http://www.autospies.com/images/users/Agent001/2009_Z4_Roadster_Release.pdf. Retrieved 2008-12-14. 
  2. "2009 BMW Z4 Review: The New Landshark has landed". Autospies.com. 2008-12-14. http://www.autospies.com/news/2009-BMW-Z4-Review-The-New-Landshark-has-landed-38854/. Retrieved 2008-12-14. 
  3. "2009 BMW Z4: Hairdressers Rejoice!". Jalopnik. Gawker Media. 2008-12-14. http://jalopnik.com/5109485/2009-bmw-z4-hairdressers-rejoice. Retrieved 2008-12-14. 
  4. By  Sam Abuelsamid RSS feed. "Detroit 2009: BMW pulls the cover off the new Z4". Autoblog.com. http://www.autoblog.com/2009/01/11/detroit-2009-bmw-pulls-the-cover-off-the-new-z4/. Retrieved 2012-01-14. 
  5. "New BMW Z4 to début on Jan 11th". iCars Singapore. http://www.icars.sg/2008/236/new-bmw-z4-to-debut-on-jan-11th/. 
  6. "2010 BMW Z4 Roadster (E89): details, photos and videos". PaulTan. http://paultan.org/archives/2008/12/16/2010-bmw-z4-roadster-e89-details-photos/. 
  7. "2009 BMW Z4 Roadster". JB car pages. http://www.jbcarpages.com/bmw/z4/2009/. Retrieved 2008-12-22. 
  8. "2009 BMW Z4 Roadster Specs". JB car pages. http://www.jbcarpages.com/bmw/z4/2009/specs/. Retrieved 2008-12-22. 
  9. "BMW's New Z4 Bows". Automoblog.net. http://www.automoblog.net/2009/05/13/2010-bmw-z4/. 
  10. "BMW Z4 GT3". Bmw-motorsport.com. http://www.bmw-motorsport.com/cars/bmw_z4_gt3. Retrieved 2012-01-14. 
  11. "BMW Z4 GT3". Simraceway. http://www.simraceway.com/cars/1825?locale=en&manufacturer_id=22. Retrieved 2012-01-14. 

External links

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