what do you mean by you wouldn't be doing this if you saw how the bar was made. It's plenty sufficient for the car, though the mounting points allow for a lot of side to side movement. I know when I was doing passing drills with another car at Willow Springs, on turn 8 which is a high speed turn, the Aveo could only get up to 95 (120mph in my wifes Mazdaspeed, 110 in a few different WRX's) and the entire rear was moving back and forth... not the car, just the wheels and rear torsion assembly.

A panhard bar or filling the rear mounts would do a lot for the handling of the Aveo.... if only my Aveo would get out of the shop so I can actually drive it again...