Abstract: A taxicab or other vehicle is designed specifically for persons with disabilities, although it can have other uses, e.g., a delivery vehicle. A ramp, stored in a cartridge under the vehicle floor, is extended to the curb to accommodate a wheelchair or other mobility aid. The floor is low enough that the slope of the ramp does not exceed regulations. The floor is lowered by providing a joint in the drive shaft to lower the drive shaft and eliminate the drive-train hump. An enclosure with a rotating window is provided to separate the driver from the front passenger area. The driver can unlock the doors on only one side to prevent a passenger from opening a door into traffic.