It depends but generally I would say yes. Where it seems to make most difference is the interactions with bumps and the speed gain you get from them. I don't think the actual top speed is higher on higher fps, but the speed gains before that over bumps seems to be higher. If you're using a keyboard like me, then it also feels like it's more likely to shift up and not get stuck in gears. If you're using a controller you can 'short shift' which bypasses this getting stuck a lot. There are of course some cars which have completely broken physics at high fps. If you drive the LM87 capped at 60 fps, it feels really slow in a straight line. You drive it at high fps and it is probably the fastest car in a straight line.
