Prince Henry of Prussia (1862–1929) became the club's patron. Henry was interested in motor cars as well and supposedly invented a windshield wiper and, according to other sources, the car horn. In his honor, the "Prinz-Heinrich-Fahrt" (Prince Heinrich Tour) was established in 1908, like the earlier Kaiserpreis a precursor to the German Grand Prix. Henry and his brother William gave patronage to the Kaiserlicher Automobilclub (Imperial Automobile Club). Henry also was an early proponent of introducing submarines and airplanes. He had merchant ships converted into seaplane tenders for operations in the Baltic Sea. Henry respected his brother, but this attitude was not returned in the
Vauxhall Prince Henry at £580 with the chassis code C10 and known as the Prince Henry model. Both Austro-Daimler and Vauxhall offered for sale replicas of their Prince Henry models at the 1911 Olympia Motor Show In 1913 the engine capacity was increased to 3969 cc and the internal designation changed to C. Production continued until 1915. Cars produced in 1914 have flutes in the bonnet that fade out a short way behind the radiator. This 1914 car described below was very familiar to the writer who was a colleague and a close friend of its owner, Laurence Pomeroy junior, the designer's son.