▁the ▁dub ious ▁distinction ▁of ▁having ▁the ▁smallest ▁crowd ▁in ▁NAS C AR ▁history ▁as ▁only ▁ 9 0 0 ▁spect ators ▁looked ▁on . ▁ ▁When ▁the ▁season ▁had ▁ended , ▁ 1 8 ▁drivers ▁had ▁won ▁at ▁least ▁one ▁Grand ▁National ▁event . ▁ ▁The ▁A MA : ▁All ▁in , ▁and ▁all ▁out . ▁ ▁The ▁ 5 0 s ▁can ▁be ▁seen ▁as ▁the ▁building ▁blocks ▁of ▁NAS C AR . ▁ ▁Autom obile ▁spe eds ▁increased ▁at ▁a ▁rapid ▁rate , ▁and ▁an ▁example ▁of ▁that ▁can ▁be ▁seen ▁in ▁the ▁events ▁at ▁the ▁Day ton a ▁Beach ▁road ▁course . ▁ ▁The ▁inaug ural ▁ 1 9 5 2 ▁event ▁had ▁a ▁pole ▁speed ▁of ▁ 6 4 . 7 ▁m ph , ▁and ▁by ▁the ▁final ▁event ▁ 4 ▁years ▁later ▁in ▁ 1 9 5 6 , ▁the ▁speed ▁had ▁ris en ▁to ▁a ▁bla zing ▁ 8 1 ▁m ph . ▁ ▁The ▁horse power ▁race ▁was ▁in ▁full ▁swing , ▁but ▁the ▁leaders ▁of ▁the ▁A MA ▁had ▁concerns . ▁ ▁R ising ▁spe eds ▁on ▁the ▁track ▁meant ▁higher ▁spe eds ▁on ▁the ▁nation ' s ▁high ways ; ▁and ▁the ▁fatal ity ▁rate ▁of ▁America ' s ▁public ▁was ▁on ▁the ▁rise . ▁ ▁NAS C AR ▁attempted ▁to ▁appe ase ▁the ▁A MA , ▁and ▁dis allowed ▁the ▁use ▁of ▁super charg ers ▁and ▁fuel ▁injection ▁in ▁their ▁san ction ed ▁events . ▁ ▁NAS C AR ▁also ▁refused ▁to