I suppose there is always a chance, you would need to know the offsets. If he has moved the narrower rims out about 2" on the centers (which is a lot) then I guess they could be for a flared car, but unlikely I think.
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.