Subaru Intelligent Drive (SI-DRIVE) is an advanced engine management system with driver-selectable modes tailored to suit different conditions and different moods. SI-DRIVE is the perfect solution for those who crave both sporty response and economic fuel consumption, taking vehicle performance to an all-new level. The Subaru WRX (equipped with the CVT) and the Subaru WRX STI feature SI-DRIVE with three different modes: Intelligent (I), Sport (S) and Sport Sharp (#). All Subaru Forester models from 2019 onwards feature with one of two different versions of the SI-DRIVE, each with two different modes. The Forester Sport benefits from having Intelligent (I) and Sport Sharp (#) modes; all other trim levels utilize Intelligent (I) and Sport (S) modes.