Power create power

Why don't someone out there create a car that can create electric current that can make that car move with that power? Understand what I meant? Hehehe... Sorry my english not so up to date!

Here's my idea... U know that most of our car use petrol or maybe diesel to move.. And every car move using 4 tires (unless Mr Bean friend's car... which use 3 tires)... Ok... And we know how a dynamo (did I spell it right?) can create an electric current. So why not we create a prototype car with a powerfull prototype small dynamo that can use this current for internal use like radio, cd player, wiper, lamp etc. Or maybe we can use it to move the car? Who knows? It's just my idea... :p.