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    * BMW M4 *

    بی ام و ام4


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    (Wikipedia) - BMW M4 BMW M4 Overview Manufacturer Production Designer Body and chassis Class Layout Chronology Predecessor
    BMW M GmbH
    February 2014–present
    Florian Nissl
    Sports coupe Compact executive car
    FR layout
    BMW M3 E92 and E93

    The BMW M4 is a high-performance version of the 4 Series automobile developed by BMW''s in-house motorsport division, the BMW M GmbH. Part of the renumbering that BMW splits the 3 Series coupe and convertible models to the 4 Series (to further differentiate with the 3 Series sedans), the M4 replaces the M3 Coupe and Convertible models. Upgrades over the standard 4-Series include more powerful and responsive engines, improved handling, suspension, and braking systems, aerodynamic body enhancements, and interior/exterior accents with the tri-colour "M" (Motorsport) badging.

    Contents

    F82 M4Front view of the M4 with large air intakes. F82 Overview Production Body and chassis Body style Platform Related Powertrain Engine Transmission Dimensions Length Width Height
    2014–present
    2-door coupe
    F32
    BMW M3
    3.0 L S55B30 twin turbo I6
    6-speed manual 7-speed M-DCT
    183.9 in (4671mm)
    73.6 in (1870mm)
    54.4 in (1383mm)

    BMW officially presented the M4 concept on August 16, 2013. However, the concept car did not reveal any interior or technical details. On September 25 2013, BMW released technical specifications of the M4 which will be powered by M-tuned S55B30 engine, a derived form of the N55 engine, displacing 3.0 L (180 cu in) and redlining at 7,500 rpm. The engine will use two mono-scroll turbochargers with boost peaking at 18.1 PSI. The power is rated at 430 hp (320 kW; 440 PS) while torque will be 550 N·m (410 lb·ft). The weight of the M4 will be 1,497 kg (3,300 lb). Both 6-speed manual and 7-speed M-DCT transmissions will be available. The 7-speed M-DCT transmission will accelerate the car from 0-60 mph (97 km/h) in 3.9 seconds. The 6-speed manual transmission will do 0-60 mph (97 km/h) in 4.1 seconds.

    Carbon fiber reinforced plastic will be used extensively throughout the car, including drive shaft, roof, roof bow, trunk, and front strut brace. For the first time in the M vehicle, an electric power steering unit will be used. The steering system will be specifically tuned for the M3 and M4. The 18 inches (460 mm) and 19 inches (480 mm) wheel options will be available with lightweight forged alloys being standard. The M compound brakes will be standard (in blue), while carbon ceramic brakes (in gold) will be available as an option.

    Although controversial, the M4 will feature Active Sound Control. A live amplification of the engine''s natural sound will be inducted into the passenger cabin via the speakers. There will not be any artificial sound or any pre-recorded track. Overall, 50 percent of the components on the M4 will be standalone compared to the F32 4 Series.

    F83 M4

    The convertible weighs 1,839 kilograms (4,055 lb), 41 kilograms (90 lb) less than its predecessor. The three-piece retractable hardtop folds in 20 seconds.

    Motorsport

    Four teams used M4s in the 2014 Deutsche Tourenwagen Masters season, with Marco Wittmann and Maxime Martin winning five races between them.

    Tags:BMW, BMW M4, Deutsche, Masters, Wikipedia


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