Completed the following sentence: Hill set up his own team in 1973: Embassy Hill with sponsorship from Imperial Tobacco. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ <unk> <unk> <unk> <unk> <unk> <unk>
1975 Monaco Grand Prix, where he had won five times, Hill retired from driving to concentrate on running the team and supporting his protege Tony Brise.