I’ve not driven a GR Yaris but kind of like the idea of rabid!!
You should try one just to have the experience in your hard drive.
What I mean by rabid is that it goads you on.....it's limitations are beyond what you may reasonably find on a B road, wet or dry, yet driving it slowly is not that enjoyable. I can see what all of the fuss is about & for the tech it is a relative bargain.
Look forward to your thoughts Exonian once you have the opportunity to try one.