The M4 Coupe 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 sedan is codenamed F82 and the M4 is codenamed F80.
Following the 2012 BMW M5, the M4 Coupe was the second M production car with a downsized twin-turbo engine that offered 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 by 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 three liter inline-six with twin-turbocharging that produces 431 hp (321 kW) from 5500 rpm to 7300 rpm and 405 ft·lb (549 N·m) of torque from 1850 rpm to 5500 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 8000 rpm, although it redlines at 7600 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.
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 Nürburgring and performance upgraded to A class. It is only available in the VIP Car Pack.
The BMW M4 is a decent performer as a mid-size sports car, capable of doing 0 to 60 mph (97 km/h) in less than 4 seconds and 10 seconds for accelerating to 100 mph (161 km/h) from a standstill. With strong and early power delivery provided by instanteneous torque, it can accelerate from 0 to 100 mph (161 km/h) in 10 seconds and tops out at 186 mph (299 km/h), which is increased to 202 mph (325 km/h) in Forza Horizon 3.
Due to being lighter than both the E92 M3 and the E46 M3, the M4 requires less than 340 ft (104 m) to brake to a stop from 100 mph (161 km/h) and corners at 0.96 Gs on average, cornering better than any road-going BMW except its track special derivate, the BMW M4 GTS.
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