The most sophisticated component of the cars was the engine. The engines were designed by brothers Fred and August Duesenburg. The brothers designed both the two-and-four cylinder engines, but their recognition as being two of the greatest engine designers did not come until the company stopped production. After the company’s failure the Duesenburgs went on to become legendary engine builders for the "Indianapolis 500." In 1922, the Duesenburgs designed the car that won the Indianapolis 500, and Fred Duesenburg was elected into the Indy 500 Hall of Fame in 1962.

    The Maytag-Mason factory advertised their cars by doing fantastic feats with them never attempted by other cars. In 1909 Fred Maytag and George Mason drove one of the two-cylinder cars up the steps of the Iowa State Capitol. The company also relied on testimonials from buyers of their cars. One owner stated that he had driven 11,000 miles and only had to pay $35.00 for repairs. Another drove his 4,000 miles with only 40 cents spent on a screw cap.