With 56 wheels, this 570 feet long beast would be the longest land vehicle ever built. And it might even have been nuclear-powered. In the 1950s the US military needed a series of early warning radar ...

This custom racing rig is built upon a Peterbilt with a Cummins X15 with 650 hp and 2,050 lb-ft of torque and is a motorhome ...

which could be dropped down to allow the truck to run on America's abandoned train tracks. Once the train wheels are down, the truck's own tires then sit on the rails and propel it forward ...

A former, long-time Amtrak train conductor in Colorado is proposing an idea to alleviate traffic on Interstate 70: Put the ...