I am looking for an A2 (obviously) in Scotland. Any advice would be most appreciated. I am an American living in Scotland and looking for a nice city car. Cheers

Start off by moving out of Scotland :D (jk)

Then:
Local Audi dealer (for new/used cars) - at a premium of course;
Nearest car auction (for used cars only, although it's unlikely you'll find many A2's there);
Autotrader ( or www.autotrader.co.uk );
Exchange & Mart ads paper ( or www.exchangeandmart.co.uk );
Loot ads paper ( or www.loot.com );
www.fish4.co.uk