This vid was from a TV series called the need for speed. There were 6 eps, each with a representative for their category and their vehicle which they did a comparo with. each ep ran for about 25 mins, and they explained the rules and technology in the categories.

Niki Lauda had the mclaren TAG at silverstone, Michele mouton and markku alen took the audi quattro around a rally circuit somewhere, Bobby rahal ran his indycar, kenny bernstein had his funny car, and darrell waltrip did the same with his nascar