An event mentioned in this article is a July 31 selected anniversary

 Who invented the lunar rover? 

 LRV Deployment procedure diagram is referenced in the text however the diagram is not included in the entry.  The detail of the text is excellent and informative. 

 Did the astronauts take critical components from the rovers back with them or deactive them before they left? i.e. If a future mission were to land near the Apollo sites would it be possible they'd still work and someone could just "hop on" and drive them again? 

The Rover was developed by Boeing with help from Delco and GM (the automobile mfg.)  If the batteries were replaced, it is possible they would still continue to work.