Why do people like to sit in the front car or back car of a rollercoaster?

So I just got back from 6 Flags with my daughter today. While I we were waiting in line for the next train on the roller coaster I got to wondering about why do people like to either ride in the very front of the train or the very end? Is there a speed difference? Does the front or back go slightly faster or give a more “jerky” ride? Does it make people feel as if they are piloting the craft if they sit in the front? Do they feel that they are just being pulled along and less in control if they sit in the end cart? There were no lines at all but the front and back of the train was always taken and the middle of the train had empty seats. Why are those two carts prime real eastate when it comes to coaster riding?