An amusement ride vehicle includes a floor deck assembly slideably mounted inside the body of the vehicle when the vehicle is in motion and telescopically extended away from the body toward a loading platform when the vehicle is at rest. A ramp assembly is supported by the floor deck assembly and may be deployed to accommodate a guest in a wheelchair. To promote safety, the ramp and vehicle door preferably have automatic latch mechanisms. Also for safety purposes, if the vehicle door is not completely pushed back or closed in the locked position, an override switch connected to the door release mechanism, prevents the ride from running. To maintain the ride capacity at all times, a companion seat is built into the vehicle body and a conversion seat can be deployed if no guest in a wheelchair is being accommodated.