I'd bet that this wagon is something made aftermarket, like early Mercedes-Benz wagons.

Some of your pics are more than 80 Kb and I have to reduce them. Please next time make it yourself. Thanks

Added 1971 Fleetwood and Tradesman.
In http://www.car-nection.com/yann/Dbas_txt/Phocad73.htm and http://motorera.com/cadillac/cad1970/CAD73F.HTM and finally http://www.100megsfree4.com/cadillac/cad1970/cad73f.htm doesn't exist a 1973 Cadillac Fleetwood "Estate Wagon"; Mazda too far and little for only a background and the Rolls was already listed.
Done
http://www.imcdb.org/movie_71571-Gone-in-60-Seconds.html

I found some of the missing cars to add them.

1. 1971 Cadillac Fleetwood 75


2. 1973 Cadillac Fleetwood Estate Wagon

3. 1972 Dodge Tradesman


4. 1974 Mazda Luce


5. 1969 Rolls-Royce Silver Shadow I