It's a doozy!
The English expression "doozy" (also "doozie") -- as in "Man, that one was a real doozy!" -- comes from the name of German-American car maker Frederick S. Duesenberg (1877-1932, born in Lippe, Germany) and his luxurious high-powered Duesenberg roadster. The American-built Duesenberg SJ could reach speeds of 130 mph (210 km/h). The Duesenberg Motor Company produced its streamlined, elegant motor cars from 1917 to 1937 to compete with similar expensive roadsters such as the Italian Bugatti.