Since the narrow-body Euro cars (called 'GTS' 1972 thru at least 1987) could be optioned up from DeTomaso's 'Gr-3 Catalogues' for home installation or purchased direct from the factory with all, most or some of the available upgrades, a full load of those add-ons made such machines 'GTS/Gr-3' and acceptable for that class of FIA competition. Pretty rare too- only 25 verified factory-built GTS/Gr-3s are known and 11 more were upgraded at the factory after sale; more than half are '73s. Of course, many more home-built partial examples were constructed over the years.
Go to (anders.hellburg@ScuderiaDeTomaso.se) for more authoritative info on this interesting Pantera varient.
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