I te tau 1970, i haere a Bartlett ki te United States ki te whakataetae i te raupapa o te USAC Championship (aka Indy Car), e ngana ana, e kore hoki e eke ki te Indianapolis 500
He aha? I whakataetae a Bartlett i etahi atu whakataetae Indy Car e toru, engari kaore i oti.