Seen this thread & felt as though i had to join in order to put you all on the right track as so to speak.
You will be amazed at what these cars make in auction, especially BCA as they are the masters of marketing rubbish & getting top dollar for their blue chip PLC vendors.
This car in question will belong to VWFS, Volkswagen Financial Services, not Porsche GB.
It will of been through at least another pair of hands since it was being driven around Silverstone, the last owner had it financed up with Porsche Finance (VWFS) & for whatever reason has stopped paying for it.
To me it has all the hallmarks of a repossession, badly used, 1 key, no history etc.
Perhaps the owner stopped paying for it as has major issues, & was not cost effective to repair.
Or worst case he had no money to repair it, & pay the payments as well.