The Spring Historic Race meeting at Oulton Park in May 1987 organised by the Historic Sports Car Club included a race for the Pre '60 Historic Sports Car Championship. One of the cars that took part was this 1959 Lotus 15.
The Lotus 15 was the successor to the Lotus X and you can read about the car in this Wikepedia article. According to the Historic Lotus Register 27 of these cars were built but details of the individual cars don't seem to be available.
The car's entrant is shown in the programme of the meeting as P.R.W. Hillingdon Motors and the driver as Peter Walker
Here's Peter Walker in the race just going into Lodge Corner
