In Ross Mollison’s world, it’s just a loose manhole cover on the Spiegelworld race course.

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Talking of “OPM,” Spiegelworld’s oft-modified, interplanetary farce at The Cosmopolitan of Las Vegas. The show runs its final performance Dec. 31. F1 fan Mollison dropped the news late Friday night, on the eve of the inaugural Las Vegas Grand Prix.

This was two nights after the racy, F1-themed “Lights Out!” cabaret musical ran its only show at “OPM” theater. Whether intended or not, the announcement of “OPM” closing was sure to be overrun by F1 coverage.

But “OPM” deserves a proper parade lap. Originally titled “Opium,” the show opened in March 2018, with the fictional but convincingly determined Harry M. Howie as its introductory character.