Help Needed make Car constantly move

I need help trying to make a car move when sat in.
I do not want the driver to have power control only steering control

So after many attempts in the standard simple car script, I can get it to implement power one boost after you sit to drive the car, however only one push it give me.

I need one that just constantly moves along at a slow pace once sat in.

I really don't need anything more than the simple car script to do this.

here is what i have already, any help is greatly appreciated and is a great learning tool I am sure I am not the only one looking to know. I have searched the forums without success.

Any body have any input

Just add a timer to keep the linear motor cycling.
Sent you a hacked copy of the simple vehicle script that does what you want. Notice the timer placement, and the Linear motor call down on the bottom.