Attached Link: http://www.turbosquid.com

I have not seen a free class "A" mercedes, but There is one at Turbosquid for $30.00 I guess made by DeEspona. You can buy for any more popular formats even as poser Prop. Do a search for DeEspona or use the word Mercedes. Sorry I know you are looking for a free one, but I have not seen any.

SAL9000 - Hello Dr. Chandra, Will I've dream?