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.
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 Auto/GT has standard Reverse Automatic Braking that use rear sensors to monitor for objects to the rear and automatically apply the brakes to prevent a collision. The Mustang doesn’t offer automatic braking for stationary objects directly to the rear.
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, side-impact head airbags, front and rear seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras, driver alert monitors, available blind spot warning systems, rear parking sensors and rear cross-path warning.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Subaru WRX is safer than the Ford Mustang:
|
|
WRX |
Mustang |
|
|
Passenger |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
156 |
161 |
| Chest Compression |
.5 inches |
.6 inches |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
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 |
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 Subaru WRX is safer than the Ford Mustang:
|
|
WRX |
Mustang |
|
|
Front Seat |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
166 |
386 |
| Abdominal Force |
135 lbs. |
154 lbs. |
|
|
Rear Seat |
|
| STARS |
5 Stars |
4 Stars |
| HIC |
255 |
519 |
| Spine Acceleration |
48 G’s |
75 G’s |
| Hip Force |
514 lbs. |
955 lbs. |
|
|
Into Pole |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
154 |
283 |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

