Hi Phil,
Regards JPS Europa at Donnington Lotus Show, it was several years ago that I saw it, but it was definitely MMO 597L, the number was etched on my memory from the film. At Donnington show, it was in the area allocated to Banks Europa, along with some of their other modified versions.
If I can find a picture of it at the time, I will let you know. There was an article in Hot Car magazine, relating to the car in 11 Harrowhouse, I will have a look for that also.
My understanding is that there were 200 numbered JPS cars, all built in 1973, but there were plenty of other JPS cars without numbers. Lotus themselves, retained one of the last JPS models at the factory, this was built 1975. This was part of their heritage collection, along with a late Elan Sprint, unfortunately, someone took the decision to auction them off!
Dave