Mirrors aren't crusial to decide the chassis in this case as all the Gulf Team Davidoff longtail GTRs had the blue mirrors also in the the season opening Hockenheim 4H race. Only in Silverstone they had the usual orange/blue/black mirrors to differentiate them. In Hockenheim race they had the markings on the windscreen banner edges and behind the rear wing (#1 no markings, #2 yellow and #3 red). These markings can be seen in the GT Endurance 1997 book too. Also I found a couple of other pictures of that similar photo session (Sutton + Speedhunters) and looking closer to the area of the driver names on the side and comparing these to 22R and 25R during the '97 season I think it better matches the Bellm/Gilbert-Scott pairing (25R). Also I'm confident the session was at Paul Ricard, not at Jarama and the other photos just made it sure. But if anyone has any more and better clues, I'll gladly accept them.
