Toyota Prius please. Thank you.
I love this site: http://www.fueleconomy.gov/FEG/bestworst.shtml
Singapore also confirms this:
http://els.nea.gov.sg/mfels/vehicle.asp
Choose "Fuel Consumption Urban" in SORT BY and "Ascending" in SORT IN.
With pictures:
The top ten. http://www.thesupercars.org/ford/most-fuel-efficient-cars/
Don't worry, it's not Ford-biased. :)
Fuel Efficiency: At 25.6km/litre, the new Prius boasts the best fuel efficiency in its class.
From: http://www.toyotasingapore.com.sg/cars/new_cars/prius/kce_1.asp
Peace.
