Yah, there's going to be a sheitload of diminished residual value.
I had a very similar incident with my Z4 back in the spring of 2005 when I was stopped at a red light behind a Brinks truck and a lady in a BMW E46 ragtop came up behind me and somehow accidentally hit the gas pedal instead of the brake as she was stopped and pile-drove me into the back of the Brinks truck..
The damage didn't appear overly major (see pics below), but it still cost $18K to get her fixed ( the car, not the lady).
When I traded her in for a 2008 1-series ragtop a few years later, I took a 30% diminished residual value hit..
When I mentioned diminished residual value to my insurance company at the time (Allstate), I got the "homey don't play dat" response.
So, good luck..
