Was it you I was chasing down the M5 today...? Burgundy metallic DeTomaso Pantera GTS reg 3GO. Not sure what engine these things have, but sounded like a dirty great V8 on fat carbs...Laaaaverly.
The pic below looks like the purple one from Supercar Sunday this year - I drooled over this one for a while. This was probably the only car at the show I'd have chosen if I discounted the Ferraris, TVRs and the Murceilago.