That would have been the first round of the British GT championship, Easter Monday. I remember it well as it was the little girl's birthday and she desparately wanted to go!
Both races won by the Ferrari 430 of Chris Niarchos & Tim Mullen, closely followed by the Panoz Esperante of Tom Kimber-Smith & Luke Hines.
No Vipers present
Oulton is a really pretty circuit, not the best viewing but good enough. And handy for me