I’ve always liked Slinky Dog dash better than Test Track. Biggest draw is the waiting times. Once you get on slinky dog, you ride the roller coaster. With test track, you have to go through all the ads, and customization of the car…which really doesn’t do much but give you a random visual. Then when you get off the ride, you have to walk through all the Chevrolet cars and you can’t get out of there easily…especially if your youngster wants to ride again….it’s just easier just to go on slinky dog in my eyes.