@ mohzsin
thx for appreciating my car bro...i bought it from a frend of mine in Pindi and he actually swaped the engine. There are no alterations watsoever and if u c the engine bay pic, u can notice that 4A-FE block fits very eaasily and still there is space under the hood. no CNG here bro cause this car is made for racing purposes 
"FE" mens fuel economic so its very economical on fuel and still yet very powerfull...on highway its avergae is 16-18 Km and in city its around 12-14 which is not bad for such a pocket rocket :-)..Spare parts are very easily availabe and are relatvely cheap as compared to other cars.
The only mod in the car is a Cone Air Intake instead of an airbox. Planning to make it a Stage 1 modified car (subject to the availability of funds
)