A crowded field

I took this photograph at Foulstons chicane on the first lap of the 'HSCC Classic Racing Cars for Retro Track and Air Trophy' race at the Gold Cup meeting at Oulton Park in August 2004.

A note about the race in the programme of event says this about the race:

'Background. One of the club's major single-seater categories, which recalls an era before ground-effect and slick racing tyres forever changed the face of single-seater racing. Specifcation. For any single-seater racing car produced and raced before December 1970. Cars must race in period specification, without rear wings and with treaded tyres.'

Jason Williams is leading in his 1964 Lola T55 but I can't make out the numbers of any of the other cars - though the car in the background on the extreme right looks like the Cooper T82 of Paul Busby.