Small Aircraft; High Wing; 1 Eng; Fixed Gear
Flight Crew Instrument; Flight Crew Private
Flight Crew Last 90 Days 25; Flight Crew Total 600; Flight Crew Type 125
Situational Awareness
Ground Event / Encounter Object; Inflight Event / Encounter Object
General None Reported / Taken
Human Factors
While on final approach to land there was a van traveling west on the north perimeter of the airport.I developed a higher than normal sink rate while landing. The van slowed as if to watch but then continued and traveled under the airplane.I added throttle to arrest the sink rate.The left landing main wheel touched the top of the van leaving a skid mark on the top of the van. The right main gear wheel touched the top of the windshield cracking the windshield.I continued my landing without further incident.  I parked the airplane on the hangar ramp just west of the runway; and after shutting down went back to the road to check on the people in the van.  All the people in the van were fine; no injuries incurred.
Light aircraft pilot reported contact with a vehicle on an airport perimeter access road.