The Q50 (except )’s optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The MKZ doesn’t offer pre-crash pretensioners.
Over 200 people are killed each year when backed over by motor vehicles. The Q50 (except Pure) offers optional Back-up Collision Intervention which use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The MKZ doesn’t offer backup collision prevention brakes.
The Q50 (except Pure) offers an optional Around View® Monitor to allow the driver to see objects all around the vehicle on a screen. The MKZ only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
Both the Q50 and the MKZ have standard driver and passenger frontal airbags, front side-impact 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, rearview cameras, available all-wheel drive, crash mitigating brakes, lane departure warning systems, blind spot warning systems 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 Infiniti Q50 is safer than the Lincoln MKZ:
|
|
Q50 |
MKZ |
|
|
Passenger |
|
| STARS |
3 Stars |
3 Stars |
| HIC |
153 |
254 |
| Neck Injury Risk |
48% |
52% |
| Neck Stress |
145 lbs. |
197 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 post at 20 MPH, results indicate that the Infiniti Q50 is safer than the Lincoln MKZ:
|
|
Q50 |
MKZ |
|
|
Into Pole |
|
| STARS |
5 Stars |
5 Stars |
| HIC |
190 |
268 |
| Spine Acceleration |
36 G’s |
46 G’s |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

