The 2015 BMW 328 is available as a 4-door, 5-seat sedan. Starting at $41,950, the 2015 BMW 328 AWD Sports Wagon 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 33-mpg on the highway. The top of the line 2015BMW328i xDrive w/South Africa/SULEV (A8) , priced at $ 39,500 , 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 33-mpg on the highway.