The difference is, roller coaster riders generally want to experience that feeling of a small apparent weight. Riding in the back is thus the way to go -- not because you go faster than the front, but because you go faster AT THE TOP OF THE HILL.

Physically, the entire train of a roller coaster travels at the exact same speed at any given moment because all the cars are connected. However, the experience of speed and "forces" is vastly different in the back row. Because the front of the train has already started descending the first drop, the back row is "pulled" over the crest of hills with much more velocity than the front row, which often "creeps" over the top. This creates a sensation of intense "airtime" or "whip" as the back car is yanked downward. Similarly, in loops and turns, the back row experiences more "G-forces" because it is traveling faster through the bottom of the element than the front car did. So, while the speedometer would show the same number for every seat, the back row feels "faster" and more aggressive because it spends more time being accelerated by the weight of the cars in front of it, making it the preferred choice for "thrill-seekers" who want a more chaotic and forceful ride experience.