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Lista Masini -- > BMW - Z4 / M Roadster

The BMW Z4 is a 2-door, rear wheel drive roadster. The Z4 began production in 2003, and replaced the BMW Z3. The design addresses many criticisms of the Z3; the Z4 is larger, more powerful, and has a significantly stiffer chassis.

The Z4 was designed by Chris Bangle and began the controversy over his "flame surfacing" design and aggressive styling choices, which can also be seen on modern BMW 7-series and BMW 5-Series cars.

While the Z4's front suspension is essentially the same as the Z3's, the rear suspension is considerably different from its predecessor's, which was based on that of the E30 BMW 3-Series. Instead of a semi-trailing arm suspension, the Z4 uses a more advanced Multi-link suspension.

Five-speed manual gearboxes are standard on all models except the 3.0 L car, which has a 6-speed. 5-speed automatic or 6-speed SMG transmissions are available on all cars.

A Sport package is also available, which adds stiffer and lower suspension, larger wheels with run-flat tires, and Dynamic Driving control, BMW's Vehicle Stability Control system.

BMW unveiled a concept coupe version of the Z4 at the Frankfurt Motor Show in 2005. The company announced on November 28 that the coupe would be produced for the 2006 model year. The base Z4 Coupe will use a 3.0 L straight-6 developing 255 hp (190 kW) and 232 ft·lbf (315 N·m), while a high-performance M4 Coupe will use the 3.2 L engine from the M3. The car is set to rival the upcoming Porsche Cayman, and is expected to accelerate from 0-100 km/h in 5.7s with a limited top speed of 250 km/h.



 
Informatie Generala
Marca:   BMW
Modelul:   Z4 / M Roadster
Anii De Producere:   (2003-current)
Tren de rulare:   Front Engine / Rear Wheel Drive
Forma caroseriei:   2dr roadster / 2dr coupe
Pret:   34122-64932 Euro
  $39627-$73418 Dolari
Motor
Marime si cilindri:   2.2 L I6/2.5 L I6/3.0 L I6/3.2 L I6
Putere:   167 / 192 / 231 / 338 (cp)
Cuplu:   155 / 181 / 221 / 269 (ft lbs)
Cutie de Viteza
Numar de trepte:   6 spd manual/SMG
Performanta
Viteza maxima:   155 / 155 / 155 / 155 (mph)
  250 / 250 / 250 / 250 (km/h)
0 - 62 mph (100 km/h):   7.5 / 6.8 / 5.7 / 4.4 (secunde)
Economicitate medie urban/extaurban:   32 / 31 / 31 / 23 (mile pe galon)

BMW

Compania germana BMW (abrevierea a Bayerische Motoren Werke AG (in romana Uzina Bavareza de Motoare) a fost fondata in octombrie 1913 de catre Karl Friedrich Rapp si Gustav Otto purtand la acel moment numele de „Uzinele Avia din Bavaria” si este specializata in producerea de automobile, motociclete si motoare.

Sigla companiei alb-albastra folosita pana in prezent utilizeaza aceleasi culori ca ale steagului Bavariei, sugerind simultan o elice alba care se roteste avind ca fundal un albastru similar cu cel al cerului.

Prima comanda pentru construirea unui motor de tip V12 vine din partea Austro-Ungariei in 1916, fapt ce a asigurat o finantare suplimentara pentru dezvoltarea marcii.

Dupa primul razboi mondial, Tratatul de la Versailles, 1919 a interzis producerea de avioane in Germania, BMW fiind nevoita sa treaca la productia de material rulant pentru cai ferate specializindu-se in productia de frine.

In 1928, BMW a cumparat uzina de automobile din Eisenach (Thuringia, Germania), iar imediat dupa aceasta si licenta pentru producerea marcii auto DIXI.

Odata cu sfarsirea celui de al doilea razboi mondial, sa prabusit toata economia Germaniei, iar concernul BMW nu a fost o exceptie. O parte din productie a ramas RDG, iar insasi piata germana lipsea din cauza crizei financiare. Iesind din criza, compania si-a reluat activitatea prin producerea motocicletelor in baza licentei Izetta. Abia in 1951 BMW produce primul automobil de dupa razboi.

In 1959, pomenindu-se intr-o criza din cauza pierderilor pe piata limuzinelor, BMW lanseaza primul model de mare succes – BMW 700.

In anii 70 compania demareaza constructia motoarelor dirijare digitala, iar in anii 80 se ocupa serios de implementarea tehnologiei ABS.

In perioada 1994-2000 BMW cumpara marcile Rover, Mini, Land Rover si Triumph.

Dupa anul 2000, concernul revine in forta pe piata cu o imbunatatire considerabila a design-ului pentru cea mai mare parte a marcilor sale.


 
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