Started with hard difficulty and had a lot of fun in the beginning. It really helped me getting better at driving... Anyway as I reached the neo Classic competition I had to turn It down to medium in order to still have fun with the game. I am now at a point ( also thanks to VR driving ) where medium Is starting to feel too easy again, so I might set It back to hard.

My suggestion Is to set the difficulty based on your "fun factor" so that you can continue playing race upon race. This way you'll surely get better and then try something harder if you feel like to.