I'm not sure why people put the RAC and the LX's in the same boat.
Yes, both are twitchy, but for very different reasons.
LX's are lightweight and powerfull. Weight in the far frint and power on the light back.
However, this makes it the ultimate RWD experience, and with a bit of practice and a decent set, it's the most balanced class in LFS, imo.
RAC on the other hand is twitchy due to a complete lack of balance. It does have power....I simply love the RAC engine in LFS. However, the suspension, steering, grip, etc are as unbalanced as it gets.
I'll still race it......as long as it has a set of wheels on it, I'll race it