For enhanced safety, the front and rear seat shoulder belts of the Subaru WRX have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Ford Mustang doesn’t offer pretensioners for its rear seat belts.
For enhanced safety, the front seat shoulder belts of the Subaru WRX are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Ford Mustang doesn’t offer height-adjustable seat belts.
In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the WRX are reminded to check the back seat if they opened the rear door before starting out. The Mustang doesn’t offer a back seat reminder.
The WRX has standard Whiplash-Reducing Front Seats, which use a specially designed seat to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash-Reducing Front Seats system allows the backrest to travel backwards to cushion the occupants and the headrests move forward to prevent neck and spine injuries. The Mustang doesn’t offer a whiplash protection system.
Over 200 people are killed each year when backed over by motor vehicles. The WRX Limited SPT/GT has standard Reverse Automatic Braking that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Mustang doesn’t offer backup collision prevention brakes.
The WRX has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Mustang doesn’t offer all-wheel drive.
Both the WRX and the Mustang have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems, rear parking sensors and rear cross-path warning.
A significantly tougher test than their original offset frontal crash test, the Insurance Institute for Highway Safety does 40 MPH small overlap frontal offset crash tests. In this test, where only 25% of the total width of the vehicle is struck, results indicate that the Subaru WRX is safer than the Mustang Fastback:
|
|
WRX |
Mustang |
| Overall Evaluation |
GOOD |
ACCEPTABLE |
| Restraints |
GOOD |
ACCEPTABLE |
| Head Neck Evaluation |
GOOD |
GOOD |
| Head injury index |
110 |
147 |
| Peak Head Forces |
0 G’s |
0 G’s |
| Steering Column Movement Rearward |
0 cm |
5 cm |
| Chest Evaluation |
GOOD |
GOOD |
| Hip & Thigh Evaluation |
GOOD |
GOOD |
| Femur Force R/L |
.9/.8 kN |
2.8/1.4 kN |
| Hip & Thigh Injury Risk R/L |
0%/0% |
0%/0% |
| Lower Leg Evaluation |
GOOD |
GOOD |
| Tibia index R/L |
.62/.57 |
.74/.66 |
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, with its optional vehicle-to-vehicle front crash prevention system, with its optional vehicle-to-pedestrian front crash prevention system, and its standard headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the WRX its highest rating: “Top Safety Pick Plus” for 2022, a rating granted to only 112 vehicles tested by the IIHS. The Mustang is not even a standard “Top Safety Pick.”