In Mirrorshades OJ drives the Bronco at ever increasing speed. The Bronco becomes a racing car. The Bronco becomes a rocket. The cops say he is speeding beyond all limits of space and time.
Observers see only a sedate crawl.
Only one explanation is possible - time travel. The light glints on OJ's mirrorshades 22nd November 1963. OJ stands in the grassy knoll. Lee Harvey is in the book repository. He needs to make an impossible shot.