I bet there isn't many pumas that dont have rusty arches.
I think the price of a mint Puma will go up in value. I used to have a 1.7 puma and it was a really fun car. It handled well to9 but it did have the front lower strut brace on it and 20 mm axle spacers on the rear.
I also fitted a 2ltr throttle body and cone filter. I had a bit of a play against a standard 1.7 puma and it just pulled away from mine ha ha ha.