Completed the following sentence: In 1970, Bartlett traveled to the United States to compete in the USAC Championship (aka Indy Car) series, attempting and failing to qualify for the
<unk> <unk> <unk> <unk> <unk> Bartlett competed in three other Indy Car races, but failed to finish.<unk> Bartlett competed in three other Indy Car races, but failed to finish.