Games all about racing or racing-themed action.
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
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