I guarantee this will get some people here hating me. Before you fire off a cranky comment, let me explain. I am NOT a racist! I just don't like the huge problem of illegal immigration in the U.S. -- and much of that illegal immigration is done by stuffing as many people as possible into vans. This pokes fun at that by making it a sport.
I got the idea from a friend who said that Mexicans can stuff a car like nobody else. It's a stereotype, I know, but for some it is true. So get over it.