Rumor seems to have it that this vehicle, designed for the movie Damnation Alley, resided here at Dean Jefferies garage until about 2005 when it was sold to a collector. I believe you can just see the front of the Landmaster in the shadow of the metal roof.
Land - Cars
Dean Jeffries Auto Styling
3077 Cahuenga Blvd W
Los Angeles, CA 90068
Links: en.wikipedia.org, www.carlustblog.com