I am just about at the end of the line with my prius. I do a lot of freeway driving in FL. Ever since I got the car it has bobbed and weaved on the freeway. I have read this forum cover to cover and tried a number of things. 1. New tires. (195s) 2. BT Plate. 3. Tire pressures. 4. Hold steering loose/ Hold tight. Although it has improved slightly, I feel like I am constantly correcting while driving. I have had the car aligned 7 times to no avail. I am ready to sell it as I feel almost unsafe on the freeway. This is my last alignment spec. FRONT Camber -0.9 -0.9 Caster 3.1 3.1 Toe 0.00 0.02 REAR Camber -1.4 -1.5 Toe 0.09 0.20 Thrust angle -0.05 My steering wheel is also off center about 5 degrees left. From reading this, can anyone diagnose what my car is doing and what I can do to fix it. My other option, which I don't really want to do, is trade it. Perhaps my sanity and safety is worth it. Any help will be greatly appreciated.