Cars Q&A

Which is most fuel effecient CNG vehicle option available/will be available? Basically need a family car with AC/Power Steering/Windows that gives the best cost per km. My daily drive is 80+ Kms to work plus weekend drives. Tried LPG in my honda city, but still gives me Rs 3+/Km. Learnt CNG in small cars (zen, wagonR, santro) can give Rs 1.5/Km. Drive quality is not an issue, as our driver mostly drives the car. I have no problems to go down from premium City to small car segment. What options should I choose from below. 1. Convert my 5 year old Honda City into CNG (40,000 + 5 year old car maintenance is the flip side) 2. Sell the city, by 2 year old wagonR and fit CNG 3. Wait for Maruti to lauch CNG cars in the coming year. Please suggest.