I have found two interesting videos that feature the Seven Dwarfs Mine Coaster. The first is a fun virtual ride through. The second gives information on the coaster vehicle design along with the swinging element of the ride being tested outdoors. The two videos were featured at the D23 Expo. But, there are likely not many here that have seen it. Those that have might enjoy taking another look.

Computer Model ride Thru Of Seven Dwarfs Mine Coaster
Computer model ride through of Seven Dwarfs Mine Train Coaster - YouTube

Seven Dwarfs Mine Train Vehicle Ride Design and Testing
Seven Dwarfs Mine Train Ride vehicle design and testing - D23 Expo - YouTube