Modification for game Postal 2, includes: wheeled and flying vehicles. Which fully integrates with SinglePlayer and Multiplayer gametypes. All 'install' and 'HOW to play' information are in Readme.txt file or in official page. You are welcome.
2015 Actual version for all versions of Postal 2, Multiplayer integration fully updated! See readme.txt for more details.
Playing in Steam Postal 2, for other game versions get vehicle launcher with GRANTITEM (see readme.txt)