saw a guy try that with a aluminum sailboat mast and some power lines. Blacked out the whole town and turned his mast into an interesting sculpture. Rubber tires save lives though- he lived!
Couldn't have been the tires - they are chock full of carbon black, and conduct electricity. Thats why you don't get zapped by static electricity when you step out of the car - unless your wool suit reacts to the upholstery!