The Oldsmobile Thor was a design study by Ghia from 1967, commisioned by General Motors, Bill Mitchell. Its based on the then new front wheel Drive GM Oldsmobile Toronado platform. It was penned by Giugiaro while he was working at Ghia. The car was kept at the De Tomaso factory museum until 2004.
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The Oldsmobile Thor at the De Tomaso factory Museum
Thanks to Wayne Barratt for the picture and information.