Here is a tuft test I did when my family came to visit.
Just my luck, she had the setting on low res. This first one has the speed changed a bit. She had it set on slow motion
https://youtu.be/KVBkjLsD8jc
Here is a slow motion version of the same :]
https://youtu.be/dATOXSCUbDM
And here is the test without covers over the side lights :
https://youtu.be/JFEDUjEvpyI
Here is the same car. It is stock, but ( unlike the above tests ) I had the mirror pulled back.
Of note, is that despite the smooth hub caps, there is a lot of turbulence around the wheels. Compare with the video above.
https://youtu.be/ibXI_8S6hTc