Well, biggest thing would be MORE cars, serioulsy more. I know most people here probably race, and that is good, but look at the server list, there is a fair amount of drifter in the LFS world, so aside from just normal type cars that are sort of lacking: RX7/8, prototype cars like the Escudo, and Mazda 787B, more F1 cars, more F3 cars, carts and american muscle cars (for drag racing) and modern american muscle cars (such as the current mustangs, and 350Zs (though they have been getting better at handling)). I'd like to see more awd on/off road cars (STI and EVO) (rb4 is good and all, but i'd like to see more power, less weight, bigger turbo).
But as a drifter, i would like to see some drift cars in the game as well, i understand that you guys claim this to be a "racing simulator" but look at the facts, there is a drifting community, and chances are, they are not going away.... unless ofcourse GRID is just that much better... I'd like to see some drift cars, from an AE86, to a 600hp s15, to a 240sx (type cars) with a v6 in it, all running road tires stiffer suspensions and ground effects kits, lightened and dangerous!
Don't judge me, these are just my thoughts at the moment...