BMW’s 5 Series is offered as either a sedan or station wagon with three distinct engine choices including a 500-horsepower V-10 in the M5. As one of BMW’s most aggressively designed cars, the 5 Series sports cues from the ultra-luxurious 7 Series, while providing a similar driving pleasure to the that afforded by the 3 Series. During the first four years of ownership, BMW 5 Series drivers receive a 50,000-mile warranty and $0 maintenance program in addition to an unlimited mileage roadside assistance. The BMW 5 Series gets an estimated 22-28 mpg on the highway; the M5 model tops out at 17 mpg.