The first consideration while shopping for remote control cars for sale is the specific person you intend to buy the car for. This will help you determine the level of complexity you seek in the car. For example a child will not need a remote controlled car with the same kind of sophistication and technology in a car for an adult. These differences are usually exhibited in durability, speed and power, size, and price. Normally, toy versions of remote controlled cars are powered by batteries and classified in a scale of 1:32 up to 1:16 while sophisticated versions for adults with a higher reach come in a scale f 1:5 and are powered by stronger fuels such as gasoline or nitro. Power Source Most remote control cars for sale are gasoline, nitro or electric powered. These three sources of power determine the car's cost, size, performance, and maintenance. The gasoline variety is powered by a mixture of regular unleaded gasoline and engine oil to create a significantly large amount of power. They have low fuel consumption and maintenance costs are also low. They come in a larger size than nitro and electric powered models, often in a scale size of 1:5. Nitro cars run on nitromethane which is a fairly expensive fuel available in selected stores. This model has will incur high maintenance costs as the fuel tends to leave residue on the chassis of the car. Electric powered cars run on rechargeable Li-Po battery packs. They are usually cheaper than the gasoline and nitromethane powered models and have less power output too.