Hybrid vehicles: The vehicles propelled by a combination of an internal combustion engine and an electric motor either in series or in parallel arrangement. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostHorizontally opposed engine or Boxer engine Next PostIdle screw