So, I went to the expo today and got to hear Kevin Rafferty basically give a full rundown on RSR. Both the models, the Autoanimatronic, and descriptions were amazing. You can see in the models that most of the show buildings are tucked in mostly toward the south. Basically, the rundown is that you'll enter through an extremely elaborately themed outdoor queue that will start at the fire house and wind back to the big canyon area tucked behind the front hills. He said there will be a house made of glass bottles and all kinds of cool things the Cars have collected as well as neat water spring features and lots of landscaping. The ride takes you past the big waterfall and inside the show building where you meet the characters and while they drive backward they will interact with you personally. Then you hear about the race you're going to be involved in and they tell you you have to get ready. You go through a bunch of effects rooms somewhat based on Test Track, but much more highly themed and elaborate, then you set up for the race. The race takes you basically on two big laps around the whole outdoor area, the one lap featuring a fast straightaway and the and a wide banked turn and one featuring several bunny hills and a tight turn. Then the climax of the ride takes us diving down a hill into a dark cavern underground. First you pass through an area full of hot springs that give Radiator Springs its name and then into a deeper cavern full of "stalaglights" giant stalagtites that look like classic car lights. It really sounds pretty amazing.
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It should definitely be even more impressive then Indy in size and technology. Kevin said the main show building alone is larger then Indy's, to get a sense for how epic this ride will be. He said it is the biggest attraction Disney's ever built. Opinions will obviously vary as to if it's better, but it will certainly be a top of the line E-ticket on a simmilar level.