The 2016 BMW 328 is available as a 4-door, 5-seat sedan. Starting at $38,350, the 2016 BMW 328 (M6) RWD Sedan is powered by a 2.0L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 22-mpg in the city and 34-mpg on the highway. The top of the line 2016BMW328AWD Sports Wagon , priced at $ 42,650 , is powered by a 2.0L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 22-mpg in the city and 34-mpg on the highway.