Hyundai Motors has launched a CNG fitment option with DEDST (Dual ECU Dynamic Sequential Technology) for the Grand i10 and Xcent. The DEDST features separate injectors assisting the drivers with a linear flow of gas resulting in minimal lag. It also has a mechanism that switches to the petrol engine after the CNG gas runs out. Unlike before, the optional CNG kit also keeps the warranty of the car intact.

Compared to the petrol, diesel and LPG variants that make 81.86bhp, 70bhp and 66bhp respectively, the CNG-fitted model makes 70bhp and 10.19kgm of torque from the slightly detuned, but same 1.2-litre Kappa 2 petrol engine on offer. The loss in power bumps up the fuel economy with the Grand i10 achieving an ARAI-certified mileage of 24km/kg. The ARAI-certified mileage figures for the petrol, diesel and LPG models stand at 18.9km/l, 24 km/l and 20.3 km/l respectively. The kit will be available on only the petrol variants of the two cars across all Hyundai dealerships. The top-end CNG Grand i10 Asta AT will be priced at Rs 7.94 lakh (ex-showroom, Delhi) and the top-end CNG Xcent SX (O) will cost Rs 8.35 lakh (ex-showroom, Delhi).