sending of spoofing FM signals to a RC car ?

disturbed:
well i am going to controll a servo for the steering, thats taken care of :stuck_out_tongue: but i need to have the engine/motor go, and for that i would need a h-bridge or a motor shield, and i have neither of those, therefore i think i would have to send FM signals to it as that would controll all of the motors, im sorry for not mentioning earlier but all of this is taken from a fully cuntioning RC car, that im trying to make autonymous

What speed controller did it use in its original RC controlled state? If it was controlled by the RC receiver then, you should be able to use exactly the same thing under Arduino control, with the Arduino taking the place of the RC receiver.