Kammala wannan jumla: Shelly ya fara tseren motoci a watan Janairun 1955, ya shiga Morgan a cikin ajin Sports Car don New Zealand Grand Prix. Shelly ya cancanci amma bai fara tseren ba. Shelly ya lashe "babban tseren farko da ya yi gasa" a Teretonga a 1958 yana tuka Cooper kuma ya ci gaba da zama babban direba a Ostiraliya da New Zealand kafin ya koma tsere a Turai a 1962. Ya yi tuƙi galibi ga John Dalton, yawanci a cikin abubuwan da ba na gasar ba tare da nasara mai sauƙi, na biyar a cikin Lombank Trophy da na uku a cikin Kofin Lavant sune manyan abubuwan da suka faru a lokacinsa. An shigar da shi zuwa 1962 Le Mans a watan Yuni ta Colin Chapman don haɗin gwiwa tare da Les Leston tare da Lotus 23, amma mai shirya tseren, ACO, ya hana shigarwa a cikin sanannen Lotus Le Mans debacle. Ya kuma shiga wasanni uku na gasar zakarun duniya na Formula One, a Aintree, inda ya yi ritaya tare da gazawar gasket na silinda, kuma a
Nürburgring da Monza, inda ya kasa cancanta a kowane lokaci. A ƙarshen kakar ya koma New Zealand inda ya ci gaba da tsere a 1963 da 1964 bayan da ya yi ritaya, kodayake ya yi gasa lokaci-lokaci daga baya.