There is no enable/disable option for individual objects, which could allow you to see and work on objects which would be able to show/hide a particular vehicle/object.
The idea could be enhanced using a sort of opacity scale,which would effect the transparency of an object..
This would allow you to compare 2 objects together, one object could be hidden by the other, but the user may be working on both so being able to view both objects at the same time, so the obscured object may have to be made translucent in order to see both objects.