If you are interested in radio controlled cars then you will probably be interested in Nitro radio controlled cars. These cars are the new generation of RC vehicles and are starting to replace the electric powered vehicles. These cars run on a mixture of methanol, nitro methane and either castor oil or a synthetic oil. This mixture is very combustible and more closely resembles a diesel motor than a gas one. The fuel is fairly easy to make or you can purchase it from hobby stores or online.