Vehicle Lifts:

Outside Lifts-   Outside lifts mount to a trailer hitch mount on your   vehicle, and have a folding platform or cradle that raises and lowers a   wheelchair or scooter in order to transport to another location for use.
 There are many types available and they have to be sized to fit your   vehicle and wheelchair or scooter.
Hybrid Lifts -
 Hybrid lifts are designed to lift a wheelchair or scooter in and out of a   minivan or SUV on a platform with a rear hatch type door. They also   have to be sized  to fit the vehicle and wheelchair or scooter.
Inside Lifts -
 Inside lifts are designed to also fit into the rear hatch cargo area of a   minivan or SUV and lift a wheelchair or scooter with a hoist that   attaches to the top or chair or scooter.
Truck Lifts -
 Trucl lifts are designed to fit in the bed of a pick up truck and lift a   wheel chair in and out of the truck bed with a hoist mechanism and they   can auto rotate to swing the chair/scooter out of the bed and set on the   ground near to the user.