. ▁The ▁race , ▁which ▁was ▁Round ▁ 1 ▁of ▁the ▁ 1 9 7 2 ▁Australian ▁Man ufact ur ers ' ▁Championship , ▁was ▁held ▁at ▁the ▁Ad ela ide ▁International ▁Race way ▁near ▁Virginia ▁in ▁South ▁Australia ▁on ▁ 2 7 ▁August ▁ 1 9 7 2 ▁over ▁ 1 6 5 ▁la ps , ▁tot alling ▁ 2 4 7 . 5 ▁miles . ▁The ▁field ▁was ▁divided ▁into ▁four ▁classes , ▁split ▁via ▁" CP ▁Units ", ▁where ▁the ▁engine ▁capacity ▁of ▁the ▁vehicle ▁( in ▁lit res ) ▁was ▁multip lied ▁by ▁the ▁ret ail ▁price ▁of ▁the ▁vehicle ▁( in ▁dollars ) ▁to ▁give ▁a ▁CP ▁Unit ▁( i . e . ▁Cap acity ▁Price ▁Unit ) ▁value . ▁ ▁Results ▁were ▁as ▁follows : ▁ ▁References ▁ ▁Australian ▁Motor ▁Racing ▁Ann ual , ▁ 1 9 7 3 ▁Official ▁Program me , ▁Ad ela ide ▁International ▁Race way , ▁ 2 7 ▁August ▁ 1 9 7 2 ▁Racing ▁Car ▁News , ▁October ▁ 1 9 7 2 ▁The ▁Ad vert iser , ▁Monday , ▁ 2 8 ▁August ▁ 1 9 7 2 ▁The ▁Australian ▁Racing ▁History ▁of ▁Ford , ▁ © 1 9 8 9 ▁The ▁Official ▁Racing ▁History ▁of ▁Hold en , ▁ © ▁ 1 9 8 8 ▁ ▁Category : Auto ▁races ▁in ▁Australia ▁Ch ester field ▁ 2 5 0 ▁Category : S ports ▁compet itions ▁in ▁Ad ela ide ▁Category : 1 9 7 0 s ▁in ▁Ad ela