A safety device for a motor vehicle includes an inflatable airbag which is adjusted so as to extend across at least a bottom portion of an outer side of a windshield of the motor vehicle in an inflated state in order to protect a person impacting the motor vehicle. The safety device has a gas generator for inflating the airbag. The airbag has a first compartment and a second compartment. The first compartment and the second compartment are disposed such that at a specific vehicle speed or within a specific vehicle speed range, a shorter person would very likely hit the first compartment, while at the specific vehicle speed or within the specific vehicle speed range, a taller person would very likely hit the second compartment.