Ok, I rode this attraction TWICE today (soft opening).
First, I think this is a VAAAAAST improvement over TT 1.0.
Everything about this ride screams high-tech, futuristic, and organized. This attraction is IMO what people meant by having NEW attractions that replaced old ones, but kept the same philosophy as the original EPCOT Center.
I also want to say, DO NOT judge this attraction based solely on the ride itself...its a much more complete experience because the car you design goes through all of the stages from pre-show, to the ride, to the post show. Someone asked why the car doesn't "look" like the one you created in the ride...its obvious, there's 6 people to a car, they couldn't possibly show up to 6 different car designs per vehicle, but you DO see your scores and how they rank against each other for each section (although it was only working part of the time).
Once you are finished with the ride, there's other things you can do with your design, you can go on a virtual racetrack with it, create your own TV commercial, etc..
Anyway, TT 1.0 was ok as it suited a purpose as a decent thrill ride, but I never liked the queue AT ALL, it was loud, busy, obnoxious and the ride itself was too industrial...it never made me want to consider buying any GM vehicle.
TT 2.0 is MUCH MUCH different. It is very calming because it isn't cluttered, everything is relatively minimalist, and has cool hues for everything. This ride is IMO a much more convincing way of "selling" Chevrolet as a car brand.
Yes, there are some issues with being really familiar with the old version as we will inevitably make comparisons saying "this used to be this and this is the same but neon, etc", but first time guests I think will be blown away by it.