David Bren, 33, has been accused in lawsuits of taking more than $2 million from investors for a project called “The Bunker.”

Bren is the son of billionaire real estate developer Donald Bren, whose spokesperson said there is no “personal or business relationship” between them.

On paper, “The Bunker” was an ideal playground for Southern California’s ultrarich.

Described as “the ultimate man cave,” a $14,500 monthly membership offered access to a fleet of high-end vehicles including Ferraris, Bugattis and Porsches, according to investor decks obtained by The Times.

Members were promised curated dining experiences, lavish private spaces, high-end wines and cigars. Founding members purportedly included venture capitalist Mark Cuban, fashion designer and L.A. oil fortune scion August Getty,

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