This is a look back, 90+ years back into the history of speed to check out the exploits and impact of the amazing racing tractors created by the Allis-Chalmers company in the 1930s that literally changed the world by racing and chasing land speed records.

These were the first tractors with rubber inflatable tires and that changed the farming game as well as entertained millions of fans over the course of five years in the 1930s. They raced, they crashed, and they performed as well as many available cars at the time.

From the road trips they took to the records they set at Bonnville, these Allis-Chalmers Model U tractors were amazing. Here's their story.