For Alto & Mehran
VX=No AC, No CNG with black bumpers
VX CNG=No Ac but have CNG with black bumpers
VXR=No CNG but with AC with matching bumpers
VXR CNG = AC CNG both with matching bumpers
For Cultus
VXR=AC but no CNG (Carburetor engine)
VXR CNG=AC CNG (Carburetor engine)
VXRi=AC but no CNG (EFi engine)
VXRi CNG = AC CNG (EFi engine)
VXL=AC+power windows+power steering but no CNG (Carburetor)
VXL CNG=AC CNG+Power windows+Power steering (Carburetor)
VXLi = AC+power windows+power steering but no CNG (EFi)
VXLi CNG=AC CNG+Power windows+Power steering (EFi)
For Baleno
There were two version i.e. JXR & JXL. I don't know exactly what were the differences. But JXL was power pack/fully loaded