Tip: Use single rider at one of Epcot’s most popular rides.

If the line for Test Track is long, and your party doesn’t mind being separated (or not being able to fully design a car), go through the single rider line. You will all go through the pre show together, and when it is time to get on a car, they fill you in one by one into the empty 3rd seat when 2 people sit. Sitting in different cars (usually one behind the other) was a small price to pay for this time-saver! And sometimes, two of you will even end up in the same car!