I friend of mine said he found a rubber piece in his driveway where I was parked the night before. He said it wasn't there before I parked, so he thinks its off my car, a 2006 XC70. Can anyone shed some light on what this might be? maybe its not from my car? It doesn't look like it it ripped or broke off, as there doesn't appear to be any damage to it. I will need to get the car on a lift, or at least get under it and look. I hope to do this tomorrow. The piece is a little over four inches length and about 3/4 wide. - Thanks

See photos.

UPDATE: I added a photo that shows some time of marking on the inside, not sure if this is Volvo related?