I'm going to go out on a limb here and suggest this could be another reincarnation of GTR #04R. It started life as a '95 Gulf GTR but had a bad crash and was replaced by #08R. Then we believe that it eventually became the West-Adrenaline program GTR. A few years back when tvrfreak paid a visit to the factory it was sitting in the corner collecting dust still wearing that "West" livery.
There's a lot of visual similarities between this car and that one. I'm certainly not 'certain' by any means, but it wouldn't surprise me if I was correct.
My
>8^)
ER