Hi Guys. I'm looking at a 2012 Prius 3. I've been test driving it for a few weeks, and noticed that it tracks very oddly. Sometimes it pulls to the right, sometimes a bit to the left. Occasionally, it goes straight. I'm pretty sure it's not the slope of the road. It's not the hubs, and the wheels seem to spin freely -- so I think the brakes are okay. [At first I wondered if a caliper was sticking, causing it to pull randomly.] Anyone heard of this issue? I just don't think it's a simple alignment issue -- usually a car pulls one way when out of alignment.