Okay so I've mentioned this in threads before, but is it seriously feasible concept?
Start off by gutting Innoventions.
Expand the PM/RR track about 2 feet on each side (major cost worthy refurb$$)
I've never actually been on test track, but it shows in the begining that you are going up / down an incline, perfect....the Innoventions building is two stories and this could all take place in there. Instead of having all the "show" inside this building, move some of the "show" into the Buzz building and Star Tours building.
Is this possible?
It could also be that I loathe Innoventions and would like to see it gone, either way it's an Idea...