Hahah unfortunately R3 is what i have to race in this particular situation. But how much do tunes really help in lower classes, doesnt seem like it helps all that much unless car is just terrible at handling already. IDK.
lol it takes A LOT of tuning to make a good a or s class car. then you have to decide which type of tune you want a power tune, handling tune or a power/handling tune. There's all sorts of ways to make cars the way you want them.