@kasmaq bhai,
I am a satisfied owner of a cultus-vxl since last october. I have found it to be quite a decent car. Good space, leg room in the front and back both. Very good road grip.
I have driven from Karachi to Hyderabad on a number of occassions. Even have taken it to Chhor Cantt (40 KM from Indian Border) beyond Umerkot and back.
The experience has been good. No complaints. Superb resale. Also, I am told, easy and economical maintenance.
My suggestion for you would be to for the Cultus-VXL CNG model @ Rs.655K, add 5K for Metallic Color.
However, change the General Tyres that come with the car. They are crap. I changed replaced mine with Michelin.