What a sweet ride! As it sounds like it's your first real project for AC, I'm super curious to see what you come up with for future projects, because this one is real high quality, even having solid LODs and all the extra config settings which is kind of rare for a lot of these mods.
I used the provided setup, turned traction control to 1, lowered the brake power a little bit (best for my hardware), and while driving turned the brake bias up to 74%. Even though the back end often feels like it's wanting to swing out, it's easy to manage and so smooth to drive. It feels like you can really push it and drive it on the edge.
Personal preference would be that it had a manual gearbox for H-Shifter, but as is it's still a great mod and I'd highly recommend it, especially if you enjoy lightweight cars to whip around tight corners. I tested on Charade 8km and managed about 3:05 in just a few laps.