Actually, it's both. In this construction walkthrough video, they say the first 2/3rds they face front then back. Final third you're free spinning. (Start at about 2:14).
Yep. Here's what they said in a presentation last year -These are unique in that they aren't free spinning. Rather they are control spun. They are programmed to rotate at certain points so that the cars will be able to face screens for story telling reasons.
Ah dang, I’ll be down to Florida in November hopefully to check out Guardians and tron. Was it the spinning or the screens that got you?Just got off Cosmic Rewind. It's amazing, but forget Battle for Eire—This takes the crown as the sickest I have ever felt getting off a ride. Ugh.