The only GM produced Dale Jr. signature Series Monte Carlo ever made was a 2004. This one for 2006 may be one that was custom made at Dale Earnhardt Chevrolet - they did do custom Monte Carlos with the E- stripes and stuff. Hope that helps.

 

The pictures are gone now. But if it's the one I think it is, it was just a regular 2006 red Monte that the owner put some store bought Dale Jr stuff in, and added big custom made vynil 8's on the doors. It was definitely not a custom Monte done by Earnhardt Chevrolet in Newton, NC.

 

Still looks cool though. Can't wait to get the money to do the same to mine!