For enhanced safety, the front and rear seat shoulder belts of the Acura TLX 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 Infiniti Q50 doesn’t offer pretensioners for the rear seat belts.
The Acura TLX has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Q50 doesn’t offer knee airbags.
The TLX’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Q50 doesn’t offer a driver alert monitor.
Both the TLX and the Q50 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, 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, rearview cameras, available all wheel drive, blind spot warning systems, around view monitors 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 Acura TLX is safer than the Infiniti Q50:
|
TLX |
Q50 |
OVERALL STARS |
5 Stars |
4 Stars |
|
Driver |
|
STARS |
5 Stars |
4 Stars |
HIC |
143 |
225 |
Neck Injury Risk |
20% |
24% |
Neck Stress |
175 lbs. |
223 lbs. |
Neck Compression |
27 lbs. |
45 lbs. |
|
Passenger |
|
STARS |
4 Stars |
3 Stars |
Chest Compression |
.6 inches |
1 inches |
Neck Injury Risk |
32% |
48% |
Neck Compression |
66 lbs. |
85 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
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 Acura TLX is safer than the Infiniti Q50:
|
TLX |
Q50 |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
Chest Movement |
.8 inches |
.9 inches |
Abdominal Force |
188 lbs. |
262 lbs. |
Hip Force |
279 lbs. |
320 lbs. |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
181 |
196 |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
Max Damage Depth |
12 inches |
19 inches |
Spine Acceleration |
33 G’s |
36 G’s |
Hip Force |
484 lbs. |
634 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
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, its standard vehicle-to-vehicle front crash prevention system, its standard vehicle-to-pedestrian front crash prevention system, and its standard headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the TLX its highest rating: “Top Pick Plus” for 2021, a rating granted to only 76 vehicles tested by the IIHS. The Q50 has not been fully tested, yet.