Firstly do not take too much notice of the dates in any race listings, they are based on the information supplied by the entrant &/or what happens to be entered on the cars historic racing log book.
They mean ' to 1965 specification ' rather than, 'this car was built in 1965' for instance.
#17 I'm not familiar with, but I could partially read the chassis plate plate, which was obscured by a roll cage.
It's a non Ford, non JWA, plate stamped in alloy.
It ends ??? R07A192002
#21 Is GT40P /1109, one of the left over Mk3 chassis's that were sold & built up after production had ended. So it is an original Ford Advanced Vehicles / JWA chassis built in period, but not made into a car until the 1970's.
(note the unusual bulges in the body by the headlamps, I wonder if they provide clearance for some Mk3 chassis features?)
(also note the 1973-1974 UK registration number, which I believe is genuine, unlike some of the registration plates displayed on other GT40 race cars)
Regards Steve
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