The SIBI System is an Active Tilt System which provides rail vehicles with a cant effect in addition to that of the track, reducing the effect of the centrifugal force experienced by passengers and permitting the train to travel faster with no loss of comfort when negotiating curves on the route. In this way, travelling times are reduced by 30%.
There is virtually no competition for this. The difference is that the SIBI is an active system which is aware of the train location at every moment and can act ahead of time by activating the tilt system before negotiating a curve.
Activity carried out by CAF Power & Automation, A technological subsidiary of CAF