FOR ADD-ON - Using OpenIV, Navigate to mods/update/x64 and add folder rapidgt4. Place dlc.rpf i have provided into that folder.
Then navigate to mods/update/update.rpf/common/data and add this line to dlclist.xml

<Item>dlcpacks:\rapidgt4\</Item>

Vehicle will spawn with rapidgt4

FOR REPLACE VERSION - Using OpenIV, replace rapidgt3.yft and rapidgt3_hi.yft with files i have provided

Please report all bugs and DO NOT REDISTRIBUTE!

Thank you all! And Enjoy!!!! -Garrappa