To provide maximum traction and stability on all roads, Full-Time Four-Wheel Drive is standard on the GranTurismo Folgore. But it costs extra on the M4.
Both the GranTurismo Folgore and the M4 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems, rear cross-path warning and driver alert monitors.
The Maserati GranTurismo Folgore weighs 676 to 1153 pounds more than the BMW M4. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

