This game is a real life car racing simulator. It is hyper realistic with great visuals and amazing driving physics. The crash physics are on point, with car damage looking and forming very realistically. This game is said to have the largest number of tracks of any simulator out there.
The tuning setup is good and you can tweak everything about your car in terms of tuning. However the only visual customisations available are car colours, and that also, we are only allowed to use preset colours, and not make designs of our own. The game cannot maintain a high frame rate either.
This game is amazing for people who want the real racing experience, as there is not a bit of arcade element in the game at all. However that makes the fame very difficult so it is not for everyone.
The biggest downside is the lack of cars. There are only around 70, not including the paid dlc. Games like forza 6 and gran turismo 6 have 600+ and 1000+ cars respectively.
All in all its not a bad fame but has lot of scope for improvement.