I live on the outskirts of Milan and the rules for Milan are very complicated. My T6 Ocean can drive in Area B currently which covers most of Milan. Soon I'll be restricted to 50 days a year as a resident I think. There is a more central area C which costs 5 Euros to enter but only if you have at least a Euro 6 Diesel. A Euro 5 diesel can not enter either zone. Driving in Milan isn't for the faint hearted and parking is difficult, especially in a van. Think multi storey carparks with 1.9m height restrictions and tight on street parking. In short I wouldn't recommend driving in Area B even if compliant with emissions. The area is covered by a network of cameras and I shudder to think what fines you could rack up particularly as the letters will arrive slowly to the UK. The public transport however is cheap so you're best parking outside Area B and jumping on a train or tube. Other than that ZTLs are the main thing to watch out for. They are normally in historic centres and generally places you wouldn't want to be driving anything bigger than a Fiat Panda anyway. ZTL signs are really complicated, sometimes it applies to trucks, sometimes it applies at different times of day. The really restrictive resident only ones normally have LED signs saying that the zone is active. You should be fine driving around the lakes, mountains and countryside surrounding Milan. There are some beautiful places to go and In September the temperatures aren't as silly and the school holidays are over.