Not a Hemi, friend. Those cars came with Chrysler 383s or 440s. This being a later car, is likely the 440. The Monteverdi Hai, a mid-engine car, was the only one from the factory with a 426 Hemi. Two high-profile owners of Monteverdi 375 series cars are Jay Leno and Bob Lutz. I saw Mr. Lutz' car at a NYC car event some years ago (the Louis Vuitton show at the Rockefeller Center).