Short answer to your question is that probably nobody knows. We aren't even sure how many GT5's were built period, without taking into account RHD/LHD.
For years I've been trying to determine the exact number of GT5-S cars built without success, despite numerous trips to the deTomaso factory. And to make a long story short, I frankly don't believe the answer I was given by the factory.
So make up a number!! ;-)
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