Light Front, uns and Drives. Redesigned last year, he sixth-generation 5 Series gained a longer wheelbase, etter fuel efficiency and more conventional styling than its predecessor. Available in 528i, 35i and 550i trims, he five-seat 5 Series is offered with a twin-turbo V-8 (550i), single-turbo six-cylinder (535i) and a new turbocharged 2.0-liter four-cylinder for the 528i, ith an eight-speed automatic transmission available across the board. Competitors include the Mercedes-Benz E-Class, udi A6 and Infiniti M. High-tech options include BMW's Adaptive Drive system, self-parking feature and lane departure and blind spot warning systems. The 5 Series lineup includes the Gran Turismo, tall hatchback built on the 7 Series sedan platform.