Which car gives better fuel economy when cruising at the same speed, the one with a lower or a higher horsepower? For example, let's compare Ford Fiesta 1.0 EcoBoost with 100 or
![Electrified and Upgraded Ford Fiesta – Even Better Fuel Economy, More Fun to Drive and More Technology | Ford of Europe | Ford Media Center Electrified and Upgraded Ford Fiesta – Even Better Fuel Economy, More Fun to Drive and More Technology | Ford of Europe | Ford Media Center](https://media.ford.com/content/fordmedia/feu/en/news/2020/06/08/electrified-and-upgraded-ford-fiesta--even-better-fuel-economy--/jcr:content/image.img.881.495.jpg/1591373713671.jpg)
Electrified and Upgraded Ford Fiesta – Even Better Fuel Economy, More Fun to Drive and More Technology | Ford of Europe | Ford Media Center
Ford Fiesta 1.0 EcoBoost range provides more value for customers - Motoring News and Advice - AutoTrader
![The Ultimate Fiesta Hot Hatch Arrives in Europe: Fiesta ST200 Dials Up Power and Performance in Style | Ford of Europe | Ford Media Center The Ultimate Fiesta Hot Hatch Arrives in Europe: Fiesta ST200 Dials Up Power and Performance in Style | Ford of Europe | Ford Media Center](https://media.ford.com/content/fordmedia/feu/en/news/2016/06/02/the-ultimate-fiesta-hot-hatch-arrives-in-europe--fiesta-st200-di/jcr:content/image.img.881.495.jpg/1500232149735.jpg)
The Ultimate Fiesta Hot Hatch Arrives in Europe: Fiesta ST200 Dials Up Power and Performance in Style | Ford of Europe | Ford Media Center
![The diesel engine from the Ford Fiesta 1.6 TDCi ECOnetic, one of the greenest cars available in Europe at it's launch in 2009 producing only 98g/km CO2 with a combined fuel consumption The diesel engine from the Ford Fiesta 1.6 TDCi ECOnetic, one of the greenest cars available in Europe at it's launch in 2009 producing only 98g/km CO2 with a combined fuel consumption](https://c8.alamy.com/comp/B9RCWG/the-diesel-engine-from-the-ford-fiesta-16-tdci-econetic-one-of-the-B9RCWG.jpg)
The diesel engine from the Ford Fiesta 1.6 TDCi ECOnetic, one of the greenest cars available in Europe at it's launch in 2009 producing only 98g/km CO2 with a combined fuel consumption
![Ford Fiesta ST Wins Fuel Efficiency Marathon Award; Shows Most Improvement Compared With Official Figures | Ford of Europe | Ford Media Center Ford Fiesta ST Wins Fuel Efficiency Marathon Award; Shows Most Improvement Compared With Official Figures | Ford of Europe | Ford Media Center](https://media.ford.com/content/fordmedia/feu/en/news/2014/10/29/ford-fiesta-st-wins-fuel-efficiency-marathon-award--shows-most-i/jcr:content/image.img.881.495.jpg/1500229261524.jpg)
Ford Fiesta ST Wins Fuel Efficiency Marathon Award; Shows Most Improvement Compared With Official Figures | Ford of Europe | Ford Media Center
![2017 Ford Fiesta VIII (Mk8) 5 Door 1.1 (85 Hp) | Technical specs, data, fuel consumption, Dimensions 2017 Ford Fiesta VIII (Mk8) 5 Door 1.1 (85 Hp) | Technical specs, data, fuel consumption, Dimensions](https://www.auto-data.net/images/f3/ford-fiesta-viii_2.jpg)
2017 Ford Fiesta VIII (Mk8) 5 Door 1.1 (85 Hp) | Technical specs, data, fuel consumption, Dimensions
![Ford Fiesta ST Wins Fuel Efficiency Marathon Award; Shows Most Improvement Compared With Official Figures | Ford of Europe | Ford Media Center Ford Fiesta ST Wins Fuel Efficiency Marathon Award; Shows Most Improvement Compared With Official Figures | Ford of Europe | Ford Media Center](https://media.ford.com/content/fordmedia/feu/en/asset.download.image.original.html/content/dam/fordmedia/Europe/en/2014/10/fuel_efficiency_marathon_metric.jpg)
Ford Fiesta ST Wins Fuel Efficiency Marathon Award; Shows Most Improvement Compared With Official Figures | Ford of Europe | Ford Media Center
![FORD Fiesta Sedan 2011, 2012, 2013, 2014, 2015, 2016, 2017 - photos, specs reference & model history - autoevolution FORD Fiesta Sedan 2011, 2012, 2013, 2014, 2015, 2016, 2017 - photos, specs reference & model history - autoevolution](https://s1.cdn.autoevolution.com/images/gallery/FORD-Fiesta-Sedan-4741_22.jpg)