http://www.pim.net/10162006Mats2.jpg
They look like the P.I. mats but as you state the logo & script are bigger.
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.