 Pari gbolohun yii: Ni ọdun 1991, Crompton wakọ Holden VN Commodore S pẹlu Peter Brock ati oniroyin ọkọ ayọkẹlẹ  awakọ ere-ije Peter McKay lati ṣẹgun kilasi C ati pari 4th patapata ni akoko ifilọlẹ Bathurst 12 Hour. Laanu, akoko Formula Holden rẹ ko bẹrẹ ati pe o padanu jara 1991, botilẹjẹpe o ṣe yiya ọkọ ayọkẹlẹ Simon Kane ati pe o tẹsiwaju lati pari 3rd ni ere-ije atilẹyin Formula Holden ni : 1991 Australian Grand Prix. Àwọn ojúewé wọnyí jápọ: 