That’s something I always wondered too. With all these people assuming the GRC is going to be a rally car…. It’s not, as far as we know they’re taking some tech from the GR Yaris and using it to turn a Corolla into a track ready sport compact, which like you said, isn’t guaranteed.
Knowing Toyota too the car will be engineered to give it some quirks to give the car character, in the process it might not be as fast as the competition it faces or as refined per se. So it’s safe to say it won’t be the FASTEST like people wish or the best handling, and that alone for years has been the thing people criticize about Toyota.
like you said though, if the dynamic chassis is there, and people understand that Toyota for the most part try to make memorable cars, not numbers cars, then they’ll have a winner.
I predict a lot of people will be disappointed expecting a straight up crazy car.