public var startSound : AudioClip;
function Update() {
if (Input.GetKeyDown(KeyCode.E)){
audio.PlayOneShot(startSound);
StartCar();
}
}
function StartCar(){
//put script here to start engine
}
Unfortunately I canβt tell you exactly which steps to take, you have to figure things out for yourself but this is an example to give you a general idea. You should read up a little about basics of scripting.
Look at input.getkey in the docs and either translate your car or add force, but thereβs a lot more to moving a car then that Iβd suggest looking at the car tutorial