A motor vehicle with a sensor arrangement for monitoring some of the outside area around the motor vehicle for the presence of a user's limb or part of an object, where the sensor arrangement is installed and aligned such that a simple movement of the body, e.g. lifting and/or turning the leg or foot, is enough to move some of a leg or foot of a user standing next to the motor vehicle into the part of the outside area around the motor vehicle monitored by the sensor arrangement.