Hey I have a 2010 mazda 3 2.5. I just recently had a set of tires and brand new rims put on the car. I had The car aligned and balanced on 3 separate occasions and and the car shakes uncontrollably in between 50 and 60 miles per hour. And also every time I hit a bump the car feels like it's bouncing up-and-down. I'm truly trying to figure out what is wrong with the car because I've taken it to a mechanic and they said nothing is wrong yeah obviously something is wrong because cars just don't do that for nothing.