On the way back to base in Peterborough, we chose another test for the new C5 Aircross. Opting for the major roads once more, Highway Driver Assist - a big step towards semi-autonomous driving - maintained our selected speed (anything above 19 mph) so all the driver had to do was keep their hands firmly on the steering wheel. True to its name, the system maintained our position in lane by following road markings! Using the Adaptive Cruise Control with Stop&Go function we could also stop and move off again to match the movements of the vehicle in front. Truly comfortable and easy driving.