Marcos kit car

Interesting. There are a number of kit car companies in the UK which make fibreglass bodies to fit the chassis of various production cars. So you buy maybe an insurance write-off with virtually undamaged engine and running gear, and transfer the mechanical components to the new body.

In the UK, the registration (licence) plate denotes the date of first registration (and hence the age) of the vehicle. If you build a kit car, it has to have a plate which represents the age of the original car whose components are used - not the date when the kit was assembled. The plate on this car - GYG 508 J - dates from about 1971 (J being the date letter), but the kit itself is probably much more recent than that.