I spotted that too Phil, you would think that the person that owned the car would have said something or perhaps he was to star struck with the thoughts of getting his car on TV (Now when are they doing that remake of Genevieve so I can put my P3 forward for the main part)
Well to the untrained eye they must all look like just old cars and I must admit I once went to the north Norfolk railways war time weekend in my P3 and know one noticed though I didn't go as so far as fitting head lamp shields and painting the wing edges white