I think the enclosed truck thing with Rollers was true at one stage in the UK, never saw it happen here.
I always liked how they said a Rolls Royce never breaks down...it fails to proceed
Jaguar had some cool stories way back, like the final design test for new models was that they were parked in Sir William Lyons (the boss) driveway to see how they looked in front of a mansion
Why do poms drink warm beer?
...Lucas fridges