I found these excellent images, of a very clean, stock S50 M Coupe on the French site of photographer Nicolas Jeannier. I wasn’t able to locate very much detail on the Coupe itself, or it’s owner. I did find that the owner, as of 3.1.10, of this M Coupe, no longer owns it. There’s a new, lucky owner out there of a very clean Estoril Blue, S50 M Coupe.
There are some additional pictures of the M Coupe here from when the owner purchased the car.