For people who havent been around drag strips, the 10R80 makes other autos, converter type, seem slow. I remember when the 6 speed autos in the '11s were first hitting the track. We were all like "damn....that thing shifts quickly!" Then, listening to the 6R shift after watching a 10R80 car was nuts. Made it seem like an AOD out of an '87. Crazy how quick the 10 speed shifts.