Volvo has also thrown Adaptive Cruise Control into the XC60, which means that you can determine how great a gap is maintained between you and the car in front. This time using radar sensors as opposed to lasers, the XC60 is able to judge how close the vehicle in front is, and adapt your speed to maintain the desired distance.
As with normal cruise control, you can input the speed that you wish to travel, but you can also determine the interval between you and the car in front. In essence the system will keep you at your selected speed, but if you get too close to the car in front, it will adapt your speed to maintain the desired interval.
Even if you don't want to use cruise control, the XC60 can still keep you safe on the motorway with Distance Alert. Again, Distance Alert uses the same radar sensors as ACC, and flashes up a red warning on the windscreen when you get too close to the vehicle in front. If you do get too close the Collision Warning buzzer sounds - something I experienced during the test drive, when the car in front of me decided he needed to turn left at the last minute and slammed his brakes on! And if the Collision Warning buzzer doesn't get your foot off the throttle and onto the brakes, the Auto Brake system will attempt to slow the XC60 down and avoid the collision. Again, whether the collision is completely avoided will depend on your speed, but at the very least you will reduce the damage from impact.