Hello everyone. I've had my starlet glanza v for 2 months now and I think there is an issue with the suspension or something. I have k-sport coilovers which arent in a good condition. When I'm over 120kph,or generally when I have more some speed, and hit a bump/pathole the front is normal but the rear is all over the place and I feel like it's trying to kill me... is it a genrally issue on this car or something else? Also how can I fix it. Thank you!