Both the Mustang Mach-E and RZ have child safety locks to prevent children from opening the rear doors. The Mustang Mach-E has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The RZ’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.
To help make backing out of a parking space safer, the Mustang Mach-E has standard Cross Traffic Alert with Cross Traffic Braking, systems which detect vehicles approaching from the sides and can automatically apply the brakes to prevent a collision. Only the RZ Premium/Luxury/F Sport offers Parking Support Brake.
Both the Mustang Mach-E and the RZ have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, 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 National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Ford Mustang Mach-E is safer than the Lexus RZ:
|
|
Mustang Mach-E |
RZ |
|
|
Rear Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
93 |
106 |
| Spine Acceleration |
26 G’s |
41 G’s |
| Hip Force |
267 lbs. |
422 lbs. |
|
|
Into Pole |
|
| STARS |
5 Stars |
4 Stars |
| Max Damage Depth |
8 inches |
10 inches |
| Spine Acceleration |
45 G’s |
49 G’s |
| Hip Force |
820 lbs. |
974 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
The Ford Mustang Mach-E (built after August 2024) has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2025 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned a “Good” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, and a “Good” score in the revised pedestrian crash prevention test. The RZ has not yet been fully evaluated by the IIHS for 2025.

