Games all about racing or racing-themed action.
Arcade Driving
Games focusing on racing with cars, motorcycles or other vehicles in an arcade manner with physics modelling that's not (and doesn't try to be) realistic.
Hill Climb Racing 2
Example games: Hill Climb Racing 2, Offroad Outlaws
REALISTIC DRIVING
Games focusing on racing with cars, motorcycles or other vehicles with realistic physics modelling and art style.
CSR Racing 2
Example games: CSR Racing 2, Asphalt 9: Legends