▁continuous ▁line age ▁of ▁the ▁traditional ▁" N ight ▁Before ▁the ▁ 5 0 0 " ▁classic . ▁When ▁the ▁races ▁were ▁at ▁K ok omo , ▁organiz ers ▁regularly ▁set ▁up ▁bus ▁service ▁from ▁the ▁Indian apolis ▁Motor ▁Speed way ▁to ▁K ok omo ▁( which ▁was ▁about ▁an ▁hour ▁to ▁the ▁north ) ▁in ▁an ▁effort ▁to ▁boost ▁attend ance . ▁▁ 1 9 7 9 ▁For ▁ 1 9 7 9 , ▁a ▁one - time ▁double header ▁of ▁two ▁separate ▁M idget ▁racing ▁events ▁were ▁scheduled ▁for ▁the ▁same ▁day ▁( S aturday ▁May ▁ 2 6 ). ▁The ▁first ▁event ▁was ▁held ▁at ▁Indian apolis ▁Race way ▁Park , ▁a ▁double header ▁of ▁the ▁US AC ▁M idget s ▁and ▁the ▁Formula ▁Super ▁V ee - based ▁M ini ▁Ind y ▁Series . ▁The ▁management ▁at ▁IR P ▁decided ▁to ▁move ▁their ▁event ▁to ▁the ▁day time ▁due ▁to ▁the ▁rising ▁cost ▁of ▁light ing ▁the ▁track . ▁The ▁event ▁was ▁bil led ▁as ▁the ▁Volks wagen ' s ▁Day ▁Before ▁the ▁ 5 0 0 , ▁as ▁the ▁Formula ▁Super ▁V ee ▁cars ▁used ▁Volks wagen ▁engines . ▁Later ▁in ▁the ▁evening , ▁a ▁second ▁US AC ▁M idget ▁event ▁was ▁scheduled ▁across ▁town ▁at ▁the ▁Indian apolis ▁Speed rome , ▁and ▁was ▁held ▁under ▁the ▁traditional ▁name ▁C oca - Col a ▁Night ▁Before ▁the ▁ 5 0 0 . ▁Many ▁US AC ▁M idget ▁drivers ▁were ▁entered ▁for ▁both ▁events . ▁Arr ang ements ▁were