Andrew - you have a Ford gearbox. The S1 Roadster is Getrag.
I haven't inspected the S2 gearbox closely, and I would shine a torch down each side, or take a photo, and you should find the level plug! You should be able to do it without lifting the console. Double check the oil spec needed because it may not be the same as the Getrag.
Second post # 12,000
