RM50K-85K is a really wide range, already covered a few segments! RM50K-60K is only enough to get local cars, or really small cars like Hyundai i10, Kia Picanto, Suzuki Alto etc. If within RM70K you can add Vios manual, Fiesta manual and Suzuki Swift to your list. Within RM80K then you can add Vios auto, Fiesta auto and Mazda2 sedan. If stretched all the way to RM85-90K only you can get City, Mazda2 hatchback, Kia Forte etc.

If your priority is fuel comsumption regardless of car price, then it's hands down Vios, no doubt. Fiesta is coming close in 2nd place, I would buy it if I were you. Actually... I did! Hehehe