I was thinking a bit about LFS' aerodynamics today and couldn't help wondering if there's a somewhat important force missing in the current model (I attached a jpeg of what I'm trying to explain):
I always felt like the (road) cars in LFS were somewhat "wobbly" on straights and prone to building up oscillation from left to right. At higher speeds, I'd imagine that there's air flowing by both sides of the car which should help to keep the car straight.
Also, I think that when a car is oversteering, there must be some air pushing against the side of the car, which should help getting the rear end back in line. The higher the speed and the higher the drift angle, the higher this aerodynamic force becomes.
This is a bit speculative as I have no idea how strong these forces really are in relation to the crucial forces but I can imagine that it's quite noticeable