The trick was to sell the paperwork so someone else could have the car, and the winner got the cash. This way, additional taxes were avoided (as the car went for "fair market value", someone got a good deal, and the winner had something to win, rather than pay for expensive insurance. The trick to winning on the game shows is still the same. Don't take anything that you would not buy for yourself. If you win a car, and you need a car, and have money to purchase a car, this is one way to get the car without having to take out a loan.
Otherwise, good luck, and, "enjoy your new car!"
Exposing yet another of life's myths. Good job! The cash value was better for 99% of the winners than getting the car. Folks in TV land who watch these shows never give the math a thought.