The 2010 BMW 528 is available as a 4-door, 5-seat sedan. Starting at $45,950, the 2010 BMW 528 RWD is powered by a 3.0L , 6 -cylinder engine mated to a manual transmission that returns an EPA estimated 18-mpg in the city and 28-mpg on the highway. The top of the line 2010BMW528AWD , priced at $ 48,250 , is powered by a 3.0L , 6 - cylinder engine mated to a manual transmission that returns an EPA estimated 17-mpg in the city and 25-mpg on the highway.