For enhanced safety, the front and second-row seat shoulder belts of the Infiniti QX80 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 BMW X5 doesn’t offer pretensioners for its second-row seat belts.
For enhanced safety, the front and middle seat shoulder belts of the Infiniti QX80 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 BMW X5 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 QX80 are reminded to check the back seat if they opened the rear door before starting out. The X5 doesn’t offer a back seat reminder.
Both the QX80 and X5 have rear cross-traffic warning, but the QX80 has Back-up Collision Intervention (automatically applies the brakes) to better prevent a collision when backing near traffic. The X5’s Cross Traffic Warning doesn’t automatically brake.
Both the QX80 and the X5 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, 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 and available all wheel drive.
The Infiniti QX80 weighs 441 to 1257 pounds more than the BMW X5. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.
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 Infiniti QX80 is safer than the BMW X5:
|
QX80 |
X5 |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
27 |
72 |
Abdominal Force |
81 lbs. |
130 lbs. |
Hip Force |
144 lbs. |
279 lbs. |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
31 |
48 |
Spine Acceleration |
21 G’s |
30 G’s |
Hip Force |
151 lbs. |
584 lbs. |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
Spine Acceleration |
39 G’s |
44 G’s |
Hip Force |
684 lbs. |
796 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.