We open our short-form, eight-part series of celebrating John Paul Jr's career in sports cars with veteran IMSA official Mark Raffauf, who watched Jr go from a teenage helper on his father's team to an IMSA champion and master of the fastest, craziest Porsche 935s and GTP machinery the series produced.

Follow: @MarshallPruett 

Subscribe: https://marshallpruettpodcast.com/subscribe

Join our Facebook Group: https://www.facebook.com/MarshallPruettPodcast