Thanks Ahmed Bhai for your kind words but I have had the chance to drive Prius yet. here are the details of different trim levels
https://www.pakwheels.com/forums/wheels-fan-clubs/199699-toyota-prius-fan-club#post3525705
Official fuel consumption ratings are :-
The estimated fuel-efficiency rating, using the U.S. EPA combined cycle, is 50 mpg-US (4.7 L/100 km; 60 mpg-imp).
[I]The official UK fuel efficiency data for the Prius T3 is Urban 72.4 mpg-imp (3.90 L/100 km; 60.3 mpg-US), Extra Urban 76.4 mpg-imp (3.70 L/100 km; 63.6 mpg-US), Combined 72.4 mpg-imp (3.90 L/100 km; 60.3 mpg-US).
That is combined average of 21+ kpl which is pretty darn impressive !
[/I]Power House :-
The 1.8-liter gasoline engine generates 98 hp (73 kW), and with the added power of the electric motor generates a total of 134 hp (100 kW). Engine is one of its kind and offered many innovative and fuel saving techniques which was being offered for the first time to consumer market and this is the main success of PRIUS world wide