I need your opinion on this. Currently I own Cultus 2007 EFI and my friend is selling his passo 2006/12 cng installed in it he is asking 730 k for his passo. I need to ask how is cng performance in passo coz before Cultus I have toyota vitz and there are so many issues in toyota vitz when I installed cng in it. So i need your reviews on cng performance in passo. Also I want to know the current value of my car its Blue Color cultus 2007 efi in full original condition from inside and outside new Tyre installed year ago and car has no work in it.