The M4 Coupé is the successor to the E92 M3 Coupe, introduced in 2013 along with a sedan variant that is still sold under the M3 nameplate. Being a model derivate of the F30 generation BMW 3 Series, the M3 Sedan is codenamed F80 and the M4 Coupe is codenamed F82.
Following the 2012 BMW M5, the M4 Coupé is the third M production car with a downsized twin-turbo inline-6 engine that offers both improved performance and fuel efficiency over the E92's naturally aspirated V8 engine. The M4 was also developed with a stronger emphasis on weight reduction as seen from a higher usage of lightweight materials.
Is it sacrilege to put a turbo in an M-class car? What about twin-turbos? No matter, sins aside, the new twin-turbo inline six (replacing the naturally-aspirated V8 of last year’s M3) is a spectacular performer. Power delivery comes on strong and early and encourages short shifting, versus the tradition of wringing power out of the top end of M-model cars. That doesn’t mean you can’t rev the bejeezus out of the M4; it just means you don’t have to. BMW says the smaller motor means less weight and enhanced handling, and this would be hard to argue with since the new M4 is grippy, transitions like a trooper and can still wag its tail if encouraged to do so. Natural selection is a fact of life and, thankfully in the case of the M4, the strong has survived.
Despite growing in dimensions, the M4 weighs 260 lb (118 kg) less than the E92 M3, making it even lighter than the E46 M3, the predecessor to the E92 M3. By using CFRP for the roof, driveshaft and strut tower brace, the M4 also gained a 20% increase in torsional rigidity.
The BMW M4 is powered by a S55B30 codenamed 3.0 L inline-six with twin-turbocharging that produces 431 hp (321 kW) from 5,500 rpm to 7,300 rpm and 405 ft·lb (550 N·m) of torque from 1,850 rpm to 5,500 rpm, with the latter being a much higher value than seen from its predecessor. The S55B30 operates at a boost pressure of 19.1 psi (1.3 bar) and redlines at 8,000 rpm, although it redlines at 7,600 rpm in real life. The BMW M4 in the Forza series is equipped with a 7-speed dual-clutch automatic transmission.
The Horizon Edition is an upgraded variant with a Skills boost featured in Forza Horizon 3. It also comes with performance upgraded to S1 class, along with a Liberty Walk Wide Body Kit and Liberty Walk livery that appears only with said widebody kit.
The Forza Edition is the Forza Motorsport 7 rendition of the Horizon Edition from the previous title, but has a standard 50% CR credits bonus, a secondary 50% CR bonus for racing at the Nürburgring, and homologated performance for the Sport Touring division. It is only available in the VIP Car Pack.
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