WAVs or WAV Vehicles are Wheelchair Accessible Vehicles. WAVs are vehicles which have been permanently adapted to carry a wheelchair user.nnThese adaptations include some form of wheelchair access, such as an access ramp, and often have a lowered floor to increase space and visibility for the wheelchair user. A restraint system to secure the wheelchair in place and other features such as a powered winch are also fitted depending on the needs of the wheelchair user.