As I was driving my car started to make a noise. It sounded like a combination of this such as rim scrapping pavement, exhaust pipe dragging, metal on pavement, and squeaking. So I continued driving home. When I parked the car I got out to check out the car. The tires and rims were fine and the exhaust pipe was in place. I didn't see anything physically wrong with the car. I checked the oil, the oil level was low but I don't think that's the problem. I got back in the car to see if the car would continue with the noise and it did I tried backing up and driving forward and the noise was still there. Help me please!