It was really nice. I don't know if it was on purpose, but I think I found the meaning to this game. In this game, you can't get the ending if you don't do the right things, and it's not about the drivers, it's up to you. If you want the right answers from them, you should ask the right questions.
I also tried very hard to get an ending from the first guy but I couldn't really do that, while the second guy is actually impossible. I think there are like 2 ways to find the ending. Nice graphics by the way.