The 1999 BMW M is available as a 2-door, 2-seat coupe. Starting at $42,700, the 1999 BMW M Roadster is powered by a 3.2L, 6-cylinder engine mated to a manual transmission that returns an EPA estimated 19-mpg in the city and 26-mpg on the highway. The top of the line 1999 BMW M Coupe, priced at $41,800, is powered by a 3.2L, 6-cylinder engine mated to a manual transmission that returns an EPA estimated 19-mpg in the city and 26-mpg on the highway.