ST. GEORGE — A St. George construction equipment dealership showcased a record-breaking engineering feat today, giving visitors an up-close look at the JCB Hydromax.

Hosted at Gulf Coast JCB on Airline Highway, the event highlighted the vehicle powered by the world's fastest hydrogen internal combustion engine, which propelled the car to speeds exceeding 400 miles per hour (setting a world land speed record of 406.320 mph).

Crews began building the machine in May before putting it through testing at a U.K. Air Force base and conducting test drives in July. Since then, the JCB Hydromax has toured 25 different cities across the country to demonstrate the real-world capabilities of hydrogen fuel technology.

Company representatives say the tour is aimed at educating the public and industry leaders on emerging clean-energy alternatives for heavy machinery and transportation.

"It's an alternative fuel source. So we think about the number of fuel sources that we all have," said Lee Tice, a senior product manager with JCB North America. "I mean, we have cars around us that are burning unleaded fuel, we have trucks that are burning diesel fuel, we've got equipment that burns propane. So it's just another type of fuel. It's not us saying this is going to be the way. This is saying here's another solution for the customers that are sensitive to the environment."

Following its showcase in St. George, a company spokesperson confirmed the JCB Hydromax will head to Tennessee for its next tour stop.