My wife and I will be visiting Romania (starting in Bucharest) in October 2011 for 4 days. From what I've read, 4 days is too much time for Bucharest alone so we'll likely visit Sighisoara (and any other suggestions - feel free to suggest). Would you recommend we rely solely on public transportation to get between Bucharest and surrounding areas - or should we rent a car? How are the roads in Romania? Thanks!