For enhanced safety, the front and rear seat shoulder belts of the Lexus IS Series 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 Volkswagen GTI doesn’t offer pretensioners for the rear seat belts.
The IS Series’ optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The GTI doesn’t offer pre-crash pretensioners.
The Insurance Institute for Highway Safety tests front crash prevention systems. With a score of 6 points, IIHS rates the Pre-Collision System in the IS Series as “Superior.” The GTI scores only 3 points and is rated only “Advanced.”
The IS Series offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The GTI doesn’t offer all-wheel drive.
Both the IS Series and the GTI 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, daytime running lights, rearview cameras, 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 Lexus IS Series is safer than the Volkswagen GTI:
|
|
IS Series |
GTI |
|
|
Driver |
|
| STARS |
4 Stars |
4 Stars |
| HIC |
274 |
454 |
| Neck Stress |
339 lbs. |
352 lbs. |
| Neck Compression |
47 lbs. |
53 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 Lexus IS Series is safer than the Volkswagen GTI:
|
|
IS Series |
GTI |
|
|
Into Pole |
|
| STARS |
5 Stars |
5 Stars |
| Spine Acceleration |
39 G’s |
45 G’s |
| Hip Force |
806 lbs. |
834 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, its standard front crash prevention system, and its headlight’s “Acceptable” rating, the Insurance Institute for Highway Safety grants the IS Series the rating of “Top Pick” for 2018, a rating granted to only 85 vehicles tested by the IIHS. The GTI was a “Top Pick” for 2017, but no longer qualifies under the tighter 2018 guidelines.

