For those who have not seen them, over on the m3forum.net website under the M5 forum section there are two threads concerning the Dinan M5 S3. The son of a man who has had his E39 M5 S2 upgraded to a S3 has authored the two threads. One thread has a number of pictures of under the hood. The other thread has pictures of the car itself, with some info about the car. This might be the first of the customer S3's after the formal Dinan announcement of the S3 kit.