Laterally Extensible Accessible Vehicle Cargo Rack

A vehicle roof rack system is disclosed, such as a laterally extensible rail-type rack for connection to the roof or top of a vehicle. The rack rails may extend laterally and at the same time, through or over their range of extension, come down to a more accessible or lower height with respect to the ground upon which the user is standing or located with respect to the vehicle when using the rack to load or unload cargo.