Here is the best I could do with a side by side comparison of a real '87 GT5-S and 3280 with the 17" wheel installed. I think that with the 17", or maybe 18" back wheels at the most, and lowered a fair amount it would look good. The wheel openings are just not round like a narrow body car.
Steve
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.