I've searched through the improvemen suggestion log and didn't find it, and I can't remember if it has been discussed already, anyways, here it goes:

Are the curbs of LFS really 3D modelled? They aren't graphically represented as 3D IIRC, and I don't know if internally the physics engine does it. But I think adding them wouldn't be very difficult, and being sharp edged, it would be only about a thousand more polys (depending of the track!), they would look great ontrack

Something like nKP curbs.

they are correct the way they are, BECAUSE! yes there is the because (since i do know what you are talking about) the current tracks in LFS are reversable.. otherwise we'd pop our tires on the curbs if they were made for one directional use lol

imo the perfoemance drop isnt really worth the detail increase as you see that only if you get very close, which you dont do in a race.

Quote from XCNuse :

they are correct the way they are, BECAUSE! yes there is the because (since i do know what you are talking about) the current tracks in LFS are reversable.. otherwise we'd pop our tires on the curbs if they were made for one directional use lol

Never thouight about that, but you are right I knew there had to be a reason.

ORION: I don't think there would be practically any performance loose by adding some more polys

LFS, contrary to many other race sims, has "smooth" curbs, not sawtooth curbs, because of the reasons already mentioned (reversability). But, they aren't completely flat - they have a slight ripple on them. This ripple, however, isn't visible in the curb 3D model, but only on the underlying collision/contact mesh. You can best view it if you record a replay of yourself braking on a curb, and then watch it in slowmo with a custom camera that points at the tyre.