I have elites and Mv6s, using a spare saloon isnt a problem lol.
I sold mine on ebay at xmas
and no it was not removed and yes it sold on ebay as it was legal.
Dont worry about the legal side of the car as it gets disguised and legalised for use on the road, but will be in full livery and on show stands and exhibition displays once i have restored it.
And yes, i do have permission for the car, and abide by what josh said, we have never had a problem.
Infact it aided road safety, when 5 of us where in convoy up the M5 going to worcester HQ (by invitation), and NOT 1 CAR would pass our convoy, despite "NOT IN SERVICE" people still werent sure, but then, if a 1998 S reg omega, a 1994 L reg Escort, a 1998 Astra, and a 1991 Senator, look like they are still in service then people arent the sharpest tools in the box.
Some times for local shows they send a bike to take you there to save hours of covering up.
but thats all by the by.
the point is, the car is coming in standard, and will be returned to spec shortly, which will be interesting little project!