But when I consider steering I break it down into 4 categories:
1. Rack speed: how fast does it point the front wheels
2. Steering weighting: how much effort is required to turn the wheel and how much does it push back against your hands
3. Feedback/Feel: the vibration, bumpiness, road texture that is transmitted to your hands
4. Accuracy: how easy/natural is it to place the car exactly where you want
For the GRC,
1. The rack speed is good. It's 12.7:1 which is a reasonably quick ratio. And it's linear, meaning it doesn't feel dead on center and oversped after 20 degrees like the Supra. The input on center turns the wheels the same as input at 20 degrees off center.
2. Weight is fine. I think it changes a little bit with the settings in the infotainment, but overall it's very average. Not super heavy, not overly light. This can be a big preference thing so I can't tell you if it's good or bad, but I liked it. I hate heavy wheels unless it's a manual rack, and I hate overly assisted wheels because it feels fake.
3. Feedback is not good. It does not transmit very much at all. This was my biggest disappointment about the car. The GR86 let's you feel the texture of the road, how rocky it is, how smooth it is. This car does not, it's very dead. Electric power steering often has this issue, but Toyota engineers usually focus on it, so I'm surprised it's not good here.
4. When you combine all these factors, the overall accuracy is good. Even with the roll of the chassis, it is very easy to point the GR Corolla where you want to. You never find yourself sawing at the wheel to try and get the car pointed in a particular direction. The wheel in your hands very naturally points the tires on the ground, and the car grips well enough to make sure you travel in your intended direction.
Hope that helps!