I experienced Toyota VITZ twice.
And i would like to say it is better in COMFORT from TOYOTA COROLLA 1.6 SE-SALOON.
But there is a simple question.
Why do u buy a small 1000 CC car ???
The answer is simple. JUST for ECONOMY.
As far as economy in concern Vitz is far behind from the current local 1000 CC cars.
If u want ur car to run on CNG for economy (ofcourse) there r 3 options which r best in Pakistan.
Chevy JOY, Hyundai SANTRO, Chery QQ.
These 3 cars provides best FEATURES in its class and as well as economy.
[highlight]Chevy JOY ENGINE :- MPFI 8-VALVE 62HP
Hyundai SANTRO :- EFi 12-Valve 55 HP
Chery QQ :- EFi 52 HP.[/highlight]
The engine and the specifications of these 3 cars represents that they all r UP-TO-DATE.
In terms of CNG i think SANTRO is best among all. Becuase it provides the TRUNK SPACE along with the CNG .