Both the Mustang Mach-E and Ariya 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 Ariya’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.
The Mustang Mach-E has standard Post Collision Braking, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Ariya doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
Both the Mustang Mach-E and Ariya have rear cross-traffic warning, but the Mustang Mach-E has Cross Traffic Braking (automatically applies the brakes) to better prevent a collision when backing near traffic. The Ariya’s Rear Cross Traffic Alert doesn’t automatically brake.
Both the Mustang Mach-E and the Ariya have standard driver and passenger frontal airbags, front and rear 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, 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 35 MPH front crash tests on new vehicles. In this test, results indicate that the Ford Mustang Mach-E is safer than the Nissan Ariya:
|
|
Mustang Mach-E |
Ariya |
|
|
Driver |
|
| STARS |
4 Stars |
4 Stars |
| HIC |
170 |
179 |
| Neck Injury Risk |
24.4% |
45.3% |
| Neck Stress |
231 lbs. |
387 lbs. |
| Neck Compression |
45 lbs. |
57 lbs. |
|
|
Passenger |
|
| STARS |
4 Stars |
4 Stars |
| HIC |
163 |
314 |
| Chest Compression |
.5 inches |
.8 inches |
| Neck Stress |
159 lbs. |
226 lbs. |
| Leg Forces (l/r) |
257/9 lbs. |
293/289 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
The Insurance Institute for Highway Safety does 40 MPH moderate front offset crash tests on new cars. In this updated test, results indicate that the Mustang Mach-E is much safer than the Ariya:
|
|
Mustang Mach-E |
Ariya |
| Overall Evaluation |
GOOD |
MARGINAL |
| Structure |
GOOD |
GOOD |
|
|
Driver Injury Measures |
|
| Head/Neck Rating |
GOOD |
GOOD |
| Chest Rating |
GOOD |
GOOD |
| Thigh/hip Rating |
GOOD |
GOOD |
| Leg/foot Rating |
GOOD |
GOOD |
| Restraints |
GOOD |
GOOD |
|
|
Rear Passenger Injury Measures |
|
| Head/Neck Rating |
GOOD |
GOOD |
| Chest Rating |
GOOD |
POOR |
| Thigh Rating |
GOOD |
GOOD |
| Restraints |
GOOD |
GOOD |
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 Nissan Ariya:
|
|
Mustang Mach-E |
Ariya |
|
|
Front Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
58 |
85 |
| Chest Movement |
.8 inches |
.8 inches |
|
|
Rear Seat |
|
| STARS |
5 Stars |
5 Stars |
| Spine Acceleration |
26 G’s |
35 G’s |
| Hip Force |
267 lbs. |
529 lbs. |
|
|
Into Pole |
|
| STARS |
5 Stars |
4 Stars |
| Max Damage Depth |
8 inches |
8 inches |
| Spine Acceleration |
45 G’s |
56 G’s |
| Hip Force |
820 lbs. |
1022 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
Instrumented handling tests conducted by the National Highway Traffic Safety Administration and analysis of its dimensions indicate that the Mustang Mach-E is .4% to 2.1% less likely to roll over than the Ariya.
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 Ariya is not even a standard “Top Safety Pick” for 2025.

