Barry had two Panteras and sold them both a number of years ago. I thought his red one went to Alberta and his Yellow went to Stoney Creek (Hamilton) area.
I haven't seen him for some time, but he's still listed on Canada 411 (Simcoe St. in Oshawa).
If you're unable to reach him, I believe his family still runs his Financial Services firm in Oshawa and they may be able to get you a cell number or tell you his schedule so you can catch him.
I remember the yellow car having the Kirk Evans low-profile rear wing (I think with an integrated brake light).