gen 1, drove before for 2 months
city drive with jams and slow traffic
full tank-450km
city 50%+highway 50%
full tank-500km
highway 90% @100~110kmh
full tank-700km
i personally own gen 2,
gen 2, drove before for 2 months
city drive with jams and slow traffic
full tank-400km
city 50%+highway 50%
full tank-bet 450 to 500km
highway 90% @100~110kmh
full tank-700km
gen3, according to friend
city drive with jams and slow traffic
full tank-450km
city 50%+highway 50%
full tank-500km
highway 90% @100~110kmh
full tank-700km~750km
disclaimer: this is from my own personal experience and will be different from others. your foot makes alot of difference on FC. till now i still unable to control my foot during slow drive, like after bump, the car transmission damn stupid will downshift and creating an unnecessary accelerating power which causes high FC, guess toyota drive by wire tech is not that good during the 2nd gen vios. 3rd gen vios have better drive by wire tech + lighter body. that's why you see a reduce of FC in the new vios
i see thanks for sharing and thanks for your info. thats mean gen1 and gen3 almost same fc. but i think gen3 slightly better fc.