Who was driving the second van?

Rating: 5/10 (22 September 2013)

Hello, I don't really want to get into details about the movie itself. Just wanted to point out that all movies have some small mistakes when it comes to scenes. in this case I wanted to know as it really surprised me in the scene where they come back to USA and have the engine crash where they get the help from the other family....If all 4 were discussing about young life and if all 3 kids are in the back of the first van....who was driving or at least steering the second van?:)))...I guess with today;s technology it drives by itself and takes the corners alone as well too :))...this was the point where the appetite got lost in watching further.
Thank you