Guys
At risk of being very unpopular, but to just offer a different perspective on this, I doubt this is Maserati being spiteful. I suspect this is mostly a matter of brand protection which global brands like Maserati are understandably paranoid about.
Maserati are using the centenary as a huge brand marketing exercise. They will have carefully organised all their official events at great cost to deliver their important brand messages in a consistent way. Is it really that surprising that they are not that keen on having a group of enthusiasts right on their doorstop conducting a parallel event with not entirely consistent brand messaging?
I am sure they will also be concerned about something going wrong, somebody getting hurt or worse, at the unofficial Maserati centenary celebration round the corner, and what damage that could do to their brand and world's view of their centenary celebrations. For their own event they will no doubt have had experts looking at all aspects of health and safety to minimise the risk.
It is one thing if the parallel celebration was happening 1000 miles away in the UK, where the risk of brand association is less, but right on their doorstep at the same time as their official event........... Is it any wonder that their PR and legal teams have got a little worked up sought to stop it no matter how well meant it is.
I do sympathise with you guys and genuinely wish I was there, but I can understand where Maserati might be coming from. It is perhaps a shame that there wasn't a conversation between Maserati and the Forum to avoid this situation and understandable bad feeling. In my view Maserati should have initiated this before taking any action.
I do hope that, despite this, you will all be able to enjoy your time in Modena as much as you have clearly enjoyed the journey getting there.