Volvo's "Iron Knight" Breaks Land Speed Record Twice Over

The world's fastest truck is now officially Volvo's custom built, 2400 horsepower, mid-mounted diesel engine "Iron Knight." The hulking truck blew away the previous speed record for a truck by only fractions of a second but in ended up establishing a couple of new records as well: the fastest 1.0 km time at 21.290 seconds, and the fastest 0.5 km time at 13.710 seconds. It's top speed? 239 km/h.