Sometimes tuning doesn't help and you may have to play around with the driving options settings. As for me on almost all of my cars like this one I set traction control to 5 and everything to on and steering assist to heavy. I've noticed that option really helps on some cars that have a tendency to slip. Max out the aerodynamics and lower the car almost all the way and set camber angles to 2 or around there for extra stability and tighten the springs so the car doesn't lean like a whale too much it'll make it a bit more agile into and out of corners. I really use this basic set up on all cars and it works with no problems no idea why others are having such difficulty with set ups. Play around with settings and see which is best for you.