I plan on using a 235/40 x 17 or 245/40 x 17 for the front, and 285/40 x 18 for the rear. Going with the Continental Extreme Contact DW it's a W rated tire and has both sizes. Both these sizes match the original Pantera tire diameter for a narrow body. Obviously the sidewalls will be shorter but IMO 40's look pretty good. A bit of the new look (shorter side walls and taller wheels) but still keeping with the original wheel look and definitely a better tire than what came stock on any OEM Pantera.
I'm about ready to order those tires now from TireRack.com. There are also 5 other brands in that size. These sizes are a bit wider than original sizes but balance the car very well (per Mad Dog who races with this size tire). Hopefully these sizes will be in production for a while as quite a few performance cars came with similar sizing in the last 10 years.
There a few trade offs and if I sell the car to someone who demands the original look my, old wheels and tires will still fit.
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.