my thaughts

Q plate is from an old XJS

Q plate cars im sure came about when the origional ID of the car could not be identified, they were given new chassis and reg numbers.

i didnt think they gave out Q`s anymore?

Jaguar would most certanly NOT remove parts and sell them on under any circumstance, nor would any dealer for that matter, i worked at Nissan and you would cry when you seen the cars they crushed for imperfections!