Not sure if yours would still have the chassis number stamped into the crossmember behind the front seat (driver's side on a UK side car) .. this might lead to some more info?
I'm not that clued up on later cars (mine's a '75) ... but are you saying they used the same vin number for numerous cars? ... well, that's not going to be at all confusing going forward!! 😆
Dual brake servos is a new one on me ... we live and learn .... good luck tracking down info on your car.
K
