BMW F82 with a S54 Inline-Six

KK Autommotive built this BMW F82 M4 race car at their company in Düderode, Germany in 2018. In the engine bay sits a naturally aspirated 3.5 L S54 inline-six making 323 kW (433 hp) on a Motec M130 ECU. Behind that is a Tractive RD906 six-speed sequential transmission transferring power to a limited-slip differential. The suspension features Intrax Racing 4-way adjustable coilovers and KK Automotive GTR control arms. The 1280 kg (2821 lb) car stops thanks to AP Racing brakes assisted by a Teves MK60 II standalone ABS. A set of NTM Racing 18-inch wheels mounted with 285/660R18 and 305/660R18 tires are covered by a GTR widebody with carbon fiber aero. The race interior features a Recaro seat with Schroth harness, paddle shifter on the steering wheel, Motec C185 digital display, and full roll cage.

Source: KK Automotive FB page and Motorsport24 FB page