I would have much rather seen Transformers use AA's...imagine starting the ride off with Ironhide AA telling you to report to Optimus Prime...and then it switched over to the current ride we have...but in the middle where Optimus and Megatron are fighting, instead of the screen, have them be giant AA's locked in battle...then Optimus tells you to protect the all spark...back to the current attraction with screens...until the ending where Optimus tells you to report in...and we see Bumblebee in one corner giving you a thumbs up, and a massive Optimus congratulating us on a job well done...then pass by the 'dead' Megatron.
Right there I only mentioned 5 animatronics. Seeing as how only Ironhide and the final Optimus would need more than a few movements, I don't see how it would have been hard to do. It's not like they would actually transform in front of us.
Being a ride about robots, It would have been so much cooler having actual robots.