Well it's already been said - if they fix it, it can be a pretty decent game. But now it's a bit of a mess that I'd not recommend.
AI difficulty is a mess - in one race you can't catch it in easy mode, in the other you clear it a minute behind.
In general a game with cartoonish premise should not be impossible to take the very first turn in easy mode (first era, first race is spa), because AI is too eager to ram, and even touching means total understeer for both.
Rant over, not bad, it's not expensive, but I was too quick to throw the money, this game is not done yet. In retrospect I'd wait for it to be included in PS plus.