I noticed the car made a loud chirping noise when going over the slightest bumps in the road. I took it back to the dealer where I bought the car and they could not find where the noise was coming from and sent me on my way. The thing is, they never even drove it, they just moved the car back and forth. No noise they said. It was probably a defect in the design. It is still chirping quite a lot. Very annoying, I wish someone could figure out what's really wrong with the car, such as Pontiac or Gm. Needs to have a recall on this issue soon.