DC ▁took ▁over ▁the ▁Am ar oo ▁Park ▁circuit . ▁A ▁race ▁meeting ▁was ▁organized ▁by ▁the ▁B MS DC ▁in ▁January ▁ 1 9 7 0 , ▁however ▁the ▁club ▁went ▁into ▁liquid ation ▁the ▁following ▁year . ▁At ▁the ▁time ▁of ▁the ▁circuit ' s ▁closure , ▁the ▁lap ▁record ▁was ▁cred ited ▁to ▁Frank ▁Mat ich ▁( Mat ich ▁SR 4 ) ▁at ▁ 5 3 . 4 ▁seconds , ▁an ▁average ▁lap ▁speed ▁of ▁ 1 4 1   km / h . ▁ ▁Origin ally ▁used ▁for ▁top ▁level ▁mot ors port ▁including ▁tour ing ▁car , ▁open ▁whe eler , ▁motor cycle ▁and ▁side car ▁racing ▁in ▁the ▁ 1 9 6 0 s . ▁The ▁mountain ▁location ▁caused ▁problems ▁with ▁fog ▁causing ▁del ays ▁in ▁the ▁race ▁programs , ▁also ▁the ▁track ▁was ▁very ▁narrow ▁by ▁today ' s ▁standards ▁and ▁surrounded ▁by ▁walls , ▁arm co ▁rail ings ▁and ▁hill side . ▁The ▁track ▁became ▁used ▁less ▁with ▁the ▁opening ▁of ▁other ▁circ uits ▁near er ▁to ▁Sydney ▁such ▁as ▁O ran ▁Park ▁and ▁Am ar oo ▁Park . ▁ ▁In ▁the ▁ 1 9 7 0 s ▁the ▁circuit ▁was ▁used ▁for ▁R ally cross , ▁where ▁the ▁cars ▁would ▁use ▁half ▁the ▁bit umen ▁track ▁and ▁a ▁d irt ▁in field ▁section ▁with ▁j umps , ▁like ▁Mot oc ross . ▁ ▁By ▁the ▁ 1 9 8 0 s ▁the ▁track ▁was ▁only ▁being ▁used ▁for ▁lap ▁dash es ▁with ▁single ▁cars