▁Atlantic ▁Championship ▁Series . ▁ ▁S CC A ▁Pro ▁Racing ▁has ▁also ▁san ction ed ▁professional ▁series ▁for ▁some ▁amateur ▁classes ▁such ▁as ▁Spec ▁R ac er ▁Ford ▁Pro ▁and ▁Formula ▁Enter pr ises ▁Pro . ▁S CC A ▁Pro ▁Racing ▁also ▁san ction ed ▁the ▁Volks wagen ▁J etta ▁T DI ▁Cup ▁during ▁its ▁time . ▁ ▁Club ▁Racing ▁ ▁The ▁Club ▁Racing ▁program ▁is ▁a ▁road ▁racing ▁division ▁where ▁drivers ▁race ▁on ▁either ▁dedicated ▁race ▁tracks ▁or ▁on ▁temporary ▁street ▁circ uits . ▁Compet itors ▁require ▁either ▁a ▁regional ▁or ▁a ▁national ▁racing ▁license . ▁Both ▁modified ▁production ▁cars ▁( r anging ▁from ▁light ly ▁modified ▁cars ▁with ▁only ▁extra ▁safety ▁equipment ▁to ▁heavily ▁modified ▁cars ▁that ▁retain ▁only ▁the ▁basic ▁shape ▁of ▁the ▁original ▁vehicle ) ▁and ▁designed - from - scr atch ▁" form ula " ▁and ▁" s ports ▁rac er " ▁cars ▁can ▁be ▁used ▁in ▁Club ▁Racing . ▁ ▁Most ▁of ▁the ▁participants ▁in ▁the ▁Club ▁Racing ▁program ▁are ▁un pa id ▁am ateurs , ▁but ▁some ▁go ▁on ▁to ▁professional ▁racing ▁care ers . ▁The ▁club ▁is ▁also ▁the ▁source ▁for ▁race ▁workers ▁in ▁all ▁special ties . ▁ ▁The ▁annual ▁national ▁championship ▁for ▁Club ▁Racing ▁is ▁called ▁the ▁S CC A ▁National ▁Championship ▁Run offs ▁and ▁has ▁been ▁held ▁at ▁R ivers ide ▁International ▁Race way ▁( 1 9 6 4 , ▁ 1 9 6 6 , ▁ 1 9 6 8 ), ▁Day ton a ▁International ▁Speed way ▁( 1 9 6