Since its earliest days making buses, train cars, and locomotives, it has joined our list of the most popular semi-truck brands in the U.S. While there's no truth to the rumors that Mack is ...

Mack Trucks Historical Museum curator Don Schumaker told Cars.com in 2018 that his Mack ED could carry up to 7,000 pounds, but its 67 horsepower didn't allow for more than 50 miles per hour.