In 1916 Tommy Milton and Fred Duesenberg entered into an agreement to build a land speed record car to Milton’s specifications. After long story and many circumstances, the car was finally built in the beginning of 1920. The LSR car, sometimes referred to as the “Double Duesy”, featured aerodynamic sheet-metal body, including an undertray. The power unit was 297 cc (4.86 L) engine to meet the 300 cc limit inches (4.91 L) as specified by the AAA racing regulations. At 3800 rpm, the engine developed 92 hp. Unfortunately for Duesenberg, this new “300 cu in” engine was soon made obsolete by a rule change that stipulated a 183 cu in (3.0 L) displacement limit for the 1920 Indianapolis race. The first race of the 1920 AAA season was the inaugural race at the Los Angles Speedway in Beverly Hills, California. Since this race would be the last for the 300 cu in engines, the LSR car was shipped with the other racers to Beverly Hills. The “Double Duesy,” was tested around the track, where Milton reportedly covered the one mile (1.6 km) circuit in 37 seconds—a speed of over 97 mph (156 km/h). The car proved to be reliable and was enetered in a longer races – Milton won one 50-miler, one of the four races of Beverly Hills weekend, and was second in another one. On 25 April 1920, Milton set seven new speed records in Daytona Beach, for everything from 0.5 to 5.0 miles (0.8 to 8.0 km). Milton covered a mile at 153.846 mph (247.593 km/h). Couple of days later he recorded at 156.046 mph (251.131 km/h). Because Milton’s record run was only one way, it would not be an officially recognized international record. However, the 156.046 mph (251.132 km/h) speed would stand as a United States record, and the speed would not be surpassed internationally until 1926. Milton left the Duesenberg team at the end of the 1920 season. However, his AAA career lasted over a decade, from 1916 to 1927, and resulted in 20 victories in AAA National Championship events, including 1921 and 1923 Indy 500.
| Season | Series | Event |
| 1920 | AAA / LSR | Daytona Beach Record Run |
| Driver | No. | Entrant |
| Tommy Milton | ||
| Chassis | Engine | Car Name |
| Duesenberg | Duesenberg | Duesenberg |
| Scale | Manufacturer | Collection |
| 1:43 | Mach One Models | |
| Cat. No. | Quality | Rarity |
| No. 60 | 
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