Hi.
I run XP service pack 2 on mine, as its never connected to the internet there's probably little point of going to service pack 3.
So far I've not delved too far in and will most likely only use it for myself anyway.
I've had a bit of fun with adding and removing options and digging up the cars past.
Good luck with your T4, your also going to get brilliant help from Brian just like he has helped me out, he's a credit to the club and its members
