Toyota is showing off the new "Aygo", which also has a 1.0L 4-cylinder engine (68 HP, 70 torque). 57.3 MPG with the stick shift. These one-liters are crazy!!
http://www.autoblog.com/2014/03/04/2014-toyota-aygo-video-geneva-2014/
Yeah, except when you look at it that's actually lower mileage than the fiesta because that's not using EPA test cycle and US gallons....