Forgive me for axing, but what is an Eyesight option?
Ah sorry for not explaining myself...
Basically the eyesight is a collision avoidance system and much more than just adaptive cruise control:
Subaru Eyesight for Liberty and Outback later this year | Car Advice | Reviews
EyeSight works in numerous situations (as described below by Subaru):
Pre-crash braking – applies the brakes when a vehicle ahead is detected slowing or stopping suddenly (and the driver has failed to apply the brakes).
Pre-crash brake assist – if the system determines that a collision is highly likely and the driver applies the brakes, the system can generate 1G maximum deceleration to help reduce impact or damage.
Progressive Start Control – if a driver accidentally applies full throttle close to a barrier or large object situated in front of the car (such as a car park wall or vehicle immediately ahead at close range), EyeSightTM inhibits the throttle opening, helping minimise or potentially avoid impact. This will also assist in helping to reduce impacts in situations when “Drive” is accidentally selected instead of “Reverse.”
Adaptive Cruise control – is designed to maintain a safe distance from the ‘target’ car in front irrespective of the varying speed of that vehicle.
Lane Departure Warning – alerts the driver if the system determines that the car is drifting across clearly marked lanes.
Vehicle Sway Warning - alerts the driver if the car starts to sway from one side of the road to another, which may occur with fatigue.
Progressive Motion Monitor - when the EyeSightTM-equipped vehicle is stopped and the vehicle in front starts to move, the driver receives an audible reminder and information display indicator notifying them that the vehicle in front has moved.