Sports ESC lets you have a bit more fun than with standard ESC, giving you more control of your car and allowing a more sporty driving style before intervening.
The latest generation of ESC also offers trailer stabilisation. If it detects your trailer is starting to yaw, the anti-skidding technology automatically reduces engine power and applies the brakes to the right wheels dynamically, in phase with the yawing. This counteracts the snaking motion and stabilises the car and trailer. When everything is stable again the brakes and engine power return to normal control. The automatic braking process also turns on the brake lights to warn other drivers, even if the driver is not touching the brake pedal.
Only when used with factory fit or approved accessory tow bars.
Article source: www.volkswagen.co.uk