Guys,
The requirement to produce documentation such as MOT, tax and insurance for roadgoing cars and a competition car log book for non-roadgoing cars is standard practise and everyone should have all this documentation available for inspection at every event.
In practise it is uncommon for it to be requested - the usual thing for roadgoing cars is scrutineers check the validity of the tax disc. If that ius not up to date or missing they may well ask further questions.
Different circuits and clubs have different sets of scrutineers etc so as Goodwood is a new venue it would be wise to be cautious.
Best regards,
Brian