The 2018 bmw m4 has a manufacturers suggested retail price msrp starting at 67400 for a coupe while the m4 convertible is notably steeper at nearly 75000 loaded an m4 can reach beyond . Save up to 8711 on one of 307 used 2018 bmw m4s near you find your perfect car with edmunds expert reviews car comparisons and pricing tools. These prices reflect the current national average retail price for 2018 bmw m4 trims at different mileages they are based on real time analysis of our 2018 bmw m4 listingswe update these prices daily to reflect the current retail prices for a 2018 bmw m4. The prices of m4 range from 68500 to 77200 both of them use a 30 l 6 cylinder twin power turbo engine which churns out a power output of 425 hp at 550 rpm and a torque of 406 lb ft at 1850 rpm the engine is further mated to a 6 speed manual transmission system