I only ran the model once. I had one rough, head-on collision, but there was no noticeable difference afterward. When cleaning it up later, I noticed the front end suspension sags significantly more than the rear. I notice, because I was impressed with its ride height and suspension when I first unboxed it (just above parallel in front and rear). Now the chassis is not parallel to the ground, either when dropping it from 6 inches or when letting the weight of the car settle the suspension. I notice I do have one bent tie-rod in front. But this would not cause such significant sag. Thoughts?