The mustang can also enter. Imprezza Race car, Opel Astra Touring car, lancer and a lot more. Just try to put dirt tires on it. If you can you've got yourself a rally car. If you can't, well it isn't a rally car. Hope that helped... :burnout:
Even if you put dirt tires on a F1, the whole under carriage would get torn to pieces. And a F1 that is raised to the hight of a rally car would also look really messed up . That would be very, very strange and an accident waiting to happen.