The standard features of the BMW X4 M Base include 3L I-6 473hp twin turbo engine, 8-speed automatic transmission with overdrive, 4-wheel anti-lock brakes (ABS), Integrated navigation system with voice activation, Side seat mounted airbags, Curtain 1st and 2nd row overhead airbags, driver and passenger knee airbags, Airbag occupancy sensor, Air conditioning, 20" aluminum wheels, All-wheel, Dynamic Cruise Control