where are remote control cars that run on fuel sold?

My boyfriend wants one of those remote control cars that run on fuel for christmas and i have no idea where to look for them or how much they cost. does anyone have any ideas.

i have one, you wanna buy it, i never used it. if not

http://www.nitrorcx.com/?gclid=CIeHrqnN9Z0CFYJx5Qod0Qz1ow
http://www.hobbytron.com/NitroRCCars.html
http://www.rctoyhouse.com/

and ebay.

Dont forget to buy fuel