* Higher RPM shifts: The transmission will hold gears longer at higher RPMs before shifting up, allowing for more aggressive acceleration and a more responsive feel.
* Lower RPM downshifts: It will also downshift at lower RPMs, allowing for quicker engine braking and a more engaging driving experience, especially when cornering or descending hills.
Essentially, "S" mode makes the Catera's automatic transmission behave more like a manual transmission would in a sporty driving style.