I don't know the ride's name, but it's the Bobsled Coaster at Black Pool Pleasure Beach. You know the one, white one with bobsled trains etc. Well as you know the Track is not hmmm track? The trains run free wheeling around the hmmm track. LOL. Im sure someone understands me. The wheels are not locked to the track if you get me. more like a water slide, goes where it wants. But at the end, it has to JOIN a track like normal roller coaster track. And the change from the one track to the other, the train didn't line up correctly for some reason and came to a very sudden hault and snapped the wheels and so on on the train, but came to a sudden hault. And you have a painful bar held near your stomach and peole had internal bleeding due to the sudden stop. It was on the news and all sorts that. I think it was even on the TV show "Theme Park" which was on BBC1 of Black Pool Pleasure Beach?