Kustom Kar Kommandos (1965)
Kustom Kar Kommandos is a 1965 experimental film by Kenneth Anger. The 3-minute short features panning shots of a young man (Sandy Trent) buffing a customized hot rod in front of an amorphous pink background, to the tune of "Dream Lover" by The Paris Sisters. Imagery and the choice of camera angles imply an intense eroticism.
More at Wikipedia.