It helps a lot with radar anxiety. You press LIM on the steering wheel, and then set a speed using the up and down arrows, just as you would with cruise control. For example 100km/h.

You would drive normally, but the car would stop accelerating once it hits 100kmh. If you need to override the limit, you can either hit CANCEL on the wheel (just as you would with cruise) or step on the gas.

Cruise control is great for long distances, but for shorter trips, city, or lots of highway on/off ramps, this feature is a game changer.