Almost all of my mileage is on the highway, no potholes ever. I have gotten the car up to 165. I have a pic of me doing 161. I drive over 100 mph probably on a daily basis. I have NEVER stalled the car up and tried to launch it hard. I always ease into it, because I have heard the rear was the weak link. I have never raced it. I do however like to put it in first and slowly accelerate until about 3,000 rpms and then hammer it. This causes the rear to get loose and really, really impresses passengers. I would not say that I abuse the car, but I do drive it the way it was intended.