well @hedonist as far is fuel cosmpution is concern it gives me 8-10km/l in city, and i took her on highway and she gave me 11-12km/l average, but lemme tell u, ride of optra is heavier cos of it cerb weight , which make it feel more pleasurable then the local assembled cars, i campare easily civic with optra cos my younger bro is drivi it, one of my freind also bought optra but on the next day only he installed cng kit, and i was supprised after driving his car on cng ..... man it was awesome u hardly feel if ur on gas or petrol.....mayb it was performing so well in cng cos optra got more hose power.......but above all this fellows trust me this car is still eye catching amoung all , cos u harldy see optra on road specailly in khi, so iam enjoyin my ride cos one get notfiy easily , whatelse a person wants:) spending 1.3 driving altis or civic which u finds in radio cab, police wala, panwala, rentwala, ..........take care ppl .IMPORTED CARS RULZ (lancer, sunny, liana, optra)