The X5 xDrive45e’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Mustang Mach-E doesn’t offer pre-crash pretensioners.
The BMW X5 xDrive45e has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Mustang Mach-E doesn’t offer a front passenger side knee airbag.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the X5 xDrive45e. But it costs extra on the Mustang Mach-E.
When descending a steep, off-road slope, the X5 xDrive45e’s standard Hill Descent Control allows you to creep down safely. The Mustang Mach-E doesn’t offer Hill Descent Control.
Both the X5 xDrive45e and the Mustang Mach-E have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available around view monitors.
The BMW X5 xDrive45e weighs 816 pounds more than the Ford Mustang Mach-E. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.
For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard front crash prevention system, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the X5 xDrive45e its highest rating: “Top Pick Plus” for 2019, a rating granted to only 103 vehicles tested by the IIHS. The Mustang Mach-E has not been tested, yet.