Almost any type of vehicle you have ever seen can be found in Radio Control. Radio Control Cars and Trucks come in 2 varieties, Gas or Electric. Most newcomers to the hobby start with an electric vehicle because they are quiet and less expensive, and utilize few pit accessories. A good battery charger, like the Promax Charger, will recharge a battery pack in 15 minutes, meaning that if you have 2 battery packs, there is minimal down time. Gas cars are powered by internal combustion engines that will give performance of speeds of 35-45 mph.
Gas engines tend to require more knowledge, thus are desired more by experienced hobbyists.