The Maruti Suzuki Wagon CNG version has crossed the three lakh sales milestone, the automaker said in a statement. The company says that the new sales mark make the WagonR CNG the most successful CNG car across all passenger vehicle segments. Maruti Suzuki introduced the CNG powered Wagon R in 2010 and it's taken the car maker a whole decade to reach the 3 lakh mark. The Wagon R CNG is also one of the most frugal options in its segment with a fuel efficiency figure of 33.54 km/kg. Maruti has sold over 24 lakh units of the hatchback over three generations and has a repeat over 24 per cent.