PJ Jones remembers the life of his friend, Jason Leffler, on SiriusXM NASCAR Radio by SiriusXM Sports published on 2013/06/13 05:29:44 +0000 PJ Jones is a race car driver who made 33 Cup Series starts, 32 NASCAR Nationwide Series starts and 18 in the Truck Series. He is also the son of legendary driver and Indianapolis 500 winner, Parnelli Jones. PJ and Jason Leffler were so close that they felt like brothers. They worked on cars together since Leffler was of 12 years old. PJ helped Leffler get his start in motorsports.