At first glance Mehran VXR 2012 or 2013 is the best options because it's an economical car. Below there are several pros and cons of this car that I will mention:
Pros:
1. It's fuel economy is good (16 - 18 Km/liter)
2. It's spare parts and accessories are really inexpensive.
3. It's Maintenance charges are really low.
4. It has a 800 cc engine and you don't need to pay annual tax (token renewal) just pay a small amount for the life time token.
Cons:
1. No ABS (Anti-Locking Breaking System).
2. No power steering, power windows, power side mirrors etc.
3. No HID headlights by default.
5. Back wheels have leaf suspensions (Kamania) instead of spring suspensions.
6. Need more maintenance than big cars.
7. Not much comfortable.
8. Air conditioning is not reliable.