There is provided a battery powered golf cart with selectable dual operative modes, walk-behind/ride-on modes, including three units: a drive/riding unit, a golf bag support unit, and a front caster wheel assembly. The three units are interconnected for cooperative association in the two operative modes...http://www.google.com/patents/US20080196951?utm_source=gb-gplus-sharePatent US20080196951 - Self-Powered Vehicle With Selectable Operational Modes
