i would suggest you again pick a slightly used Coure or a slightly used Suzuki Alto, or consider Japanese 660cc cars such as Suzuki Alto, Daihatsu Mira, Mitsubishi Ek Wagon
Mehran is simply not worth it, for the price for 555,000 you still have to buy the A/C and radio,+ add a servo braking system. that makes it 6 lack plus, Im not counting insurance registation as that would be needed for any car you purchase.
As far as your second question, Its the same engine, Only changed from carby to Efi, it might have better fuel economy but the power is still the same, A/C still wont work on this engine.