#102012 BMW 550 MPG City 15 | Hwy 20
The standard features of the BMW 550 i xDrive include 4.4L V-8 400hp engine twin turbo, 8-speed automatic transmission with overdrive, 4-wheel anti-lock brakes (ABS), navigation system, side seat mounted airbags, curtain 1st and 2nd row overhead airbags, airbag occupancy sensor, automatic air conditioning, 18" aluminum wheels, cruise control, and an ABS and driveline traction control.