Two legends of American motorsport were born On This Day. 🦅 Bobby Unser and Roger Penske - born in 1934 and 1937 respectively - have glittering careers as driver and team owner, including three seasons together in CART with a (highly controversial) Indy 500 victory. 🏆😬 #OnThisDay #BornOnThisDay #HappyBirthday #RogerPenske #Penske #BobbyUnser #Unser #IndyCar #CART #Indy500 #IsItMayYet #Motorsport #OpenWheelRacing #OpenWheel #F1 #MotorsportPhotography #F1photos #MotorsportImages #LATImages