I think it’s important to judge this ride based on the whole experience which has really been ramped up this time, something that the video above doesn’t show. I've added a new video below that does:
Full Test Track 2.0 queue, ride, and post-show at Epcot, Walt Disney World
As they said when they originally announcement the new Test Track the rides new emphasis is on designing a car before testing it. The queue line displays are quite interesting, especially the mapped drawing onto the model car.
But it’s the pre-show that looks really good as you now get to design your own car. It’s a bit like our own Rocket Racers (RIP) from Legoland Windsor but so much more advanced. With this you can actually touch drag your own design giving you a crazy amount of customisation. Now this part of the ride does look brilliant!
Then when you are on the ride it compares your design to the Test Track vehicles which is the new versions selling point. Effectively they've turned it into an interactive ride although all interaction takes place before boarding and you just get to see how your car compares as the ride progresses.
Beats Laser Guns in my opinion
There are also a couple of new elements I liked such as the wind tunnel trick like the vinyl shop and tyre factory in Radiator Springs Racers.
But overall I stand by what I said before. They've taken an educational attraction and removed a lot of the substance behind it. As brilliant as the new design section is it isn’t based on real world facts besides aerodynamic shaping and a very lose plus or minus system for using certain engines, wheels ect. (the best ones being made up futuristic designs). Then on the ride itself they’ve also dropped all the facts about ABS, heat testing, surface grip ect. and given it a Tron aesthetic making it feel like a video game and further removing any sense of reality.
That's not necessarily a bad thing. As a ride it looks a lot more exciting and will probably be a massive hit. But as someone who hasn't ridden either version I was more interested to ride it how it was when it had context. If they'd kept the best of both that would have been a truly great ride.