We used to be in the paddocks during race week in Montreal in the 1980s through 1990s with our vintage cars, a lot of people do not realise there is more then just the one race class at the event.
It was always good fun until too many people wanted to be more important then the primary draw of the event (the F1 cars and drivers), so we spectated for a couple of years but it was not the same so we dropped it off our roster.