"I've got the most brilliant idea! Instead of people driving on wheels, why don't we just make the roads themselves out of tires! Brilliant!"
Well, I guess that's one way to make sure you don't get separated when the guy in front is the only one who knows where he's going. Unless they're going to drive up a mountain like in those Ford commercials and they're planning to use climbing rope for cars.
~Not-"Not-So-Handy Andy" Jack