Auto Union 1000 1000S
The Auto Union 1000 was the successor to the DKW 3=6 and represented the final evolution of the company's two-stroke technology before merger into Audi. Powered by a three-cylinder two-stroke engine that required oil-fuel mixture, it produced a distinctive blue exhaust smoke and unique sound that defined German economy cars of the era. The 1000S variant offered improved performance with 55 hp and became popular in rally competition. Despite its unconventional powerplant, the car featured advanced front-wheel drive and independent suspension, making it a capable handler for its time.
Two-stroke engines require special maintenance and oil-fuel premix. Check for engine smoke (normal but excessive indicates wear). Rust is common in floor pans and sills. Parts are scarce outside Germany. The 1000S and Sp coupe variants are most desirable. Original cars are increasingly rare as many were scrapped.
Produced from 1958-1965 with 244,143 units built. The 1000 was the last Auto Union model before the brand transitioned fully to Audi. A coupe version called the 1000Sp offered sleeker styling. The two-stroke engine was phased out as Audi adopted four-stroke technology in the mid-1960s.