After seeing Panhard's Daimler-designed V-twin engine demonstrated at the Paris Exposition of 1889 and inquiring into the engine's weight and power, Armand Peugeot expressed his interest in a lightweight motor vehicle powered by the engine. Daimler worked with Wilhelm Maybach to develop the vehicle. The tubular steel frame resembled two bicycles joined side by side and was made by bicycle manufacturer Neckarsulmer Stahlfabriken, which would later become part of NSU Motorenwerke. Water, to cool the engine, was run through the tubular frame.