Quote:
Originally Posted by Vman455
I first noticed these at an auto show a couple years ago and was curious about their function. Turns out it isn't an aerodynamic device at all, but is required to meet a FMVSS requirement that rear tires remain inboard of bodywork to 50 degrees past vertical. Some manufacturers use a small plastic add-on:
2018 Mazda Miata
But at this year's Chicago show I noticed some of these are being molded into bumper covers now rather than added as a separate piece:
2019 Jaguar F-Pace
2019 Lexus NX
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Thanks for pointing out that those are regulations compliance features. I lanced it off the car at lunch time. Based on that it certainly wasn't helping aero. So off it went.