For enhanced safety, the front and rear seat shoulder belts of the Kia K4 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 Nissan Versa doesn’t offer pretensioners for its rear seat belts.
In a Vehicle-to-Vehicle Frontal Crash Prevention 2.0 test conducted by the Insurance Institute for Highway Safety (IIHS), the Kia K4 achieved a “Acceptable” rating - the second highest possible - for its performance in forward collision warning and automatic braking systems, demonstrating its excellent capabilities in preventing collisions. The Nissan Versa has not been tested.
The K4 GT-Line Turbo offers an optional Surround View Monitor to allow the driver to see objects all around the vehicle on a screen. The Versa only offers a rear monitor and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the front or sides.
Both the K4 and Versa have rear cross-traffic warning, but the K4 LXS/EX/GT-Line has Rear Cross-Traffic Collision-Avoidance Assist (automatically applies the brakes) to better prevent a collision when backing near traffic. The Versa’s Rear Cross Traffic Alert doesn’t automatically brake.
Both the K4 and the Versa have standard driver and passenger frontal airbags, front and rear side-impact airbags, side-impact head airbags, front wheel drive, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, rearview cameras and available blind spot warning systems.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Kia K4 is safer than the Nissan Versa:
|
K4 |
Versa |
|
Driver |
|
STARS |
5 Stars |
4 Stars |
Neck Injury Risk |
16.7% |
36% |
Neck Stress |
129 lbs. |
326 lbs. |
Neck Compression |
39 lbs. |
298 lbs. |
Leg Forces (l/r) |
147/158 lbs. |
354/296 lbs. |
|
Passenger |
|
STARS |
4 Stars |
4 Stars |
Neck Injury Risk |
30.2% |
57% |
Neck Stress |
118 lbs. |
271 lbs. |
Neck Compression |
70 lbs. |
137 lbs. |
Leg Forces (l/r) |
315/48 lbs. |
236/194 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 Kia K4 is safer than the Nissan Versa:
|
K4 |
Versa |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
Chest Movement |
1 inches |
1 inches |
Abdominal Force |
196 lbs. |
216 lbs. |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
HIC |
178 |
232 |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
Instrumented handling tests conducted by the National Highway Traffic Safety Administration and analysis of its dimensions indicate that the K4, with its five-star roll-over rating, is 1.9% less likely to roll over than the Versa, which received a four-star rating.
The Kia K4 (Built after January 2025) has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2025 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned a “Good” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, and a “Good” score in the revised pedestrian crash prevention test. The Versa has not yet been fully evaluated by the IIHS for 2025.