TEST SPEED BMW M4 GTS 769 hp Forza Horizon 4 

BMW M4 GTS WITH 3.0 L S55 twin-turbo
The M4 GTS is powered by the same 2,979 cc (3.0 L; 181.8 cu in) twin-turbocharged straight-six engine as in the standard M4, but the power output has been raised by 51 kW (69 PS; 68 hp) to 368 kW (500 PS; 493 hp) at 6,250 rpm and 600 N⋅m (443 lb⋅ft) of torque at 5,500 rpm largely due to a nozzle water injection system that is the first to be used on a production automobile in almost twenty years.[19] In addition to the increased engine power, the M4 GTS is 27 kg (60 lb) lighter than the standard M4 Coupé with the DCT transmission, so the weight now stands at 1,585 kg (3,494 lb). The M4 GTS features new OLED taillights (a BMW first), a stripped and weight-reduced interior with a full roll cage (half roll cage for North American markets), fiberglass cabin to trunk divider, removed soundproofing material, titanium exhaust system, a manually-adjusted three-way suspension by KW suspensions, and multi-way adjustable carbon fiber splitter and wing that can add up to 63 pounds front and 210 pounds rear downforce at 186 mph.