You do not need to insert the key as the car will run without the key in the slot, it has keyless drive. When you stop though, you do need to press the 'start/stop' button to switch the engine off because of this. Once you unlock the car, as long as the key is within the car(in your pocket etc), the car will start.
Sent from my iPad using Tapatalk HD
V40 D3 R-Design Lux. Rebel Blue, Auto Dim Mirror, Memory seats/mirrors, Lux winter pack, DAB radio, Rear Camera, Privacy Glass, Floor divider.