Depending on how tall you are, Simon, the GT-5 seats may not fit you very well if added to a std narrow body Pantera. GT-5 seats were thickly padded in base and back and have back-rake adjustment. So to compensate, the floorpans are dropped in many later Panteras. Stock early Panteras do not have dropped floorpans.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.