All the entries you see here were designed by students. Shell Eco-Marathon Americas is a competitio pitting students against each other to design fuel-efficient vehicles. The winning entry got up to 2,824 mpg.

The vehicles are powered by everything from gasoline to fuel cells to electricity and solar power. Here are the top 8.

The Indy

Running on diesel, competing for team Raiders of the Lost Spark from St. Paul’s High School, Louisiana, on the track during Shell Eco-marathon Americas 2014, Sunday, April 27, 2014, at the George R. Brown Convention Center in Houston.



SHELL ECO-MARATHON / FLICKR

The Prototype Gasoline

Competing for team BYU SMV from Brigham Young University, Utah, at opening ceremonies during Shell Eco-marathon Americas 2014, Friday, April 25, 2014, at the George R. Brown Convention Center in Houston.



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The Archetype

Running on hydrogen, competing for team UCDenver from University of Colorado Denver, Colorado around the track during Shell Eco-marathon Americas 2014, Saturday, April 26, 2014, at the George R. Brown Convention Center in Houston.



SHELL ECO-MARATHON / FLICKR

The Elroy

Running on gasoline, competing for team Mater Dei Supermileage from Mater Dei High School, Indiana, United States, at the George R. Brown Convention Center in Houston. The students beat their previous record from 2013, when they achieved 901 miles per gallon.



SHELL ECO-MARATHON / FLICKR

The Urban Diesel

Running on diesel, competing for team Tech Eco-Car from Louisiana Tech University, Louisiana, makes its way around the track during Shell Eco-marathon Americas 2014, Sunday, April 27, 2014 in Houston.



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Prototype Gasoline

All-time winners from Université Laval (Canada) take the first-place prize achieving 2,824 miles per gallon.



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The 59 Fiat 211SC

Running on diesel, competing for team Super Chargers II from Clear Springs High School, Texas, United States, during day three of the Shell Eco-marathon Americas 2014, Saturday, April 26, 2014, at the George R. Brown Convention Center in Houston.



SHELL ECO-MARATHON / FLICKR

The Electric Motor City Cub

Running on Battery Electric, competing for team Electric Ignatian Ignition from University of Detroit Jesuit High School, Michigan.



SHELL ECO-MARATHON / FLICKR