I agree with this. To coincide with the existing GTR cars. A prototype (open, or closed) would be perfect. Something loosely based off a Lola chassis with some similar characteristics to the open wheel cars but with fenders should add to the good mixed class racing LFS already handles. Imagine running an endurance race on one of the Longer Aston tracks with prototypes buzzing by gt cars. It could provide the best racing in LFS, in my opinion.