Interesting question, and I'm impressed by the quality of the discussion by everybody.
I'm certainly not a Porsche guy but the old ones get my respect, so a choice between a Termi or an old Porsche is a tough one.
I read you are not driving the Porsche because you are afraid somebody might hit it. I assume your first aim of buying a car is driving it. I can relate to that - being in Europe, wanting to import a Mustang from the US I really needed to think about what I wanted. I love 94-98 Saleens, but in the end I got a GT with Saleen wing and rims. Not a Saleen, not even a Cobra but "just" a GT.
Why? With the Saleen bodykit I would go mad driving it - my country is filled with speedbumps and high curbs. I would ruin the bumpers immediately and importing spares from the US would cost a fortune. Same with a Cobra - there's only a handful of Cobra's in the country so spares are hard to come by. GT's on the other hand: these bodyparts are available in the country.
I can tell you, I might not have a true Saleen but my car turns heads anyway. But I can drive around without going mad about damaging the car, and that makes it a lot more fun.
Good luck with your choice. If you have the option, keep them both. If you can only have one and you want to drive without worries: get the Termi.