Your 4 year old son doesn't have enough leg room....
Page and I drive a 2007 Volkswagen Polo. It's a four 4 door hatch back and it has worked just fine for all our travels. It's quite the change from the Chrysler Town and Country van that's in our garage. It is one of many examples of how easy it is to live with less.
In Hungary they drive on the same side of the road so the transition has been relatively easy. The major differences are the roads are much tighter and there are no green left turn signals. Instead when you have a green light you can turn left. At first you think your turning into on coming traffic. After a lot of horn honking we are leaning the rules. The one thing I really like is the counters at the major intersection (photo). Their traffic signal also turn yellow before they turn green. This really helps the traffic flow.