Using floating fenders inside normal fenders to seal the gap?
 

Has it been tried or proposed before?

Using some floating fender sections which are bolted to the suspension so they move up and down with bumps and when the car leans in corners. They are inside the normal fixed fenders to seal the tire-fender gap.

Maybe the floating fender will NOT need to rotate as the wheels are steered left and right. It may only move up and down and slide into the normal fender area.

Maybe some kind of flexible (rubber) fender flare where one end is bolted to the normal fender and the other end to the floating fenders to seal the gaps for aero purposes.

Any similar approaches?

Start here:
http://ecomodder.com/forum/showthrea...tml#post316331
http://files.conceptcarz.com/img/For...pt-1983-01.jpg

There're probably others, but I'll have to think.

I always thought that "cycle fenders" inside the regular fenders would be a great way to improve aero... something like the following, but on the front:
http://i116.photobucket.com/albums/o...d/100_1571.jpg

http://i116.photobucket.com/albums/o...d/100_1572.jpg

Often done on cars like the Locost

CIVIS transit bus
 

Might try a Google Images search for the CIVIS transit bus of 2011.They have spats on the front wheels.

Actually I meant some floating arc shaped sections that slide up and down (into the fender wells) with bumps but DON't turn left to right as the car is steered.