We are flying into Rome on Aug 4, 2010. I had planned on renting a car and driving from Rome to Positano. However, after reading some of the posts, I am starting to query my idea. My wife likes to travel heavy, so we will have a lot of luggage. And even though we will only be in Positano 3 days, we will be heading to Tuscany that Saturday, hence the car. Any recent experiences/opinions would be greatly appreciated.