Wow, this brough back some memories. However, I do remember only seeing 1-2 Jaguar S-Type R and they were both Black (No, it was not the same one). I am in no way a BMW fan, but there is something about that model that I liked a LOT. Perhaps a blend of conservative design, not TOO many computerised systems and a good old stick shift.... Yet, the car that I would pick out of all these would remain the Audi RS6 for the fact that it is AWD, offers plenty of power and torque at low RPM's and it is a monster when you tune it.
Good find!