If you need city car that fuel save just consider new model from 2010 Daewoo Matiz Creative
below its specs :

* Length: 3,595 mm
* Height: 1,520 mm
* Width: 1,595 mm
* Wheelbase: 2,375 mm
* Tread
o Front: 1,410 mm
o Rear: 1,417 mm
* Engine
o Valve Train: DOHC
o Displacement: 995 cc
o Max. Power: 70 PS at 6,400 rpm
o Max. Torque: 9.4 kg.m at 4,800 rpm
o Fuel Efficiency: 17 km / l
* Curb Weight: 910 kg