The original Test Track taught you about what the real car testing process is like, in a very exciting way, by putting you in the car. As much as you might like EPCOT Center's passive, slow-moving rides (and I sure do) this is really the very definition of edutainment. The only thing missing from this Future World attraction was future.
The current Test Track, I suppose, is futuristic, and gives off the slightest sense of optimism. But what do you learn, what do you gain from the ride? Instead of going through tests that mimic those in the real world, you're going through futuristic-looking rooms of colorful lights, in silence. Once you get over the razzle dazzle of the futuristic look, there is no substance. They put style over substance.
I think they would've been better off simply updating the original.