I'd a friend years ago had a Suzuki GSX-R either 1000 or 1100 something like that, i dont know how that model went(though i remember him stating something about the R bit, cant remember now. It was an old one.
His numberplate though had the three 6's in it. And when I went over to the Isle of Man for the TT I remember seeing another big suzuki also with three 6's in the plate. Must have been from the same release time.