Clubsport S doesn't have a strut bar, but I wouldn't read into that too much. A strut bar very well could require a new set of crash tests, which would make it nowhere near worth the dev cost.
While it had more negative camber thanks to machining changes on the knuckles, it doesn't have adjustable camber plates, which definitely make a big difference for a track centric car. Nor does it have a Clubsport style half cage in the back, or three way adjustable dampers. It was still built on a budget as a special edition, not as a true track car.
The TCR Race Car doesn't have a strut bar I can see either, but the full roll cage will stiffen the frame up massively so may not be needed in that case!