Length? Wheelbase... Are you buying one or building one from scratch??
If your basing your purchasing decision on those questions you're going to get burned. That goes for any car. This site and panteraplace has lots of good information, so pull up a chair and start reading!
Any oh btw here is a site you can go to to answer your questions and looksee and some other supercars. http://www.supercars.net
Good luck-
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.