C10-type
With the decision to enter the Prince Henry Trial the engine power was increased to 60 bhp (45 kW) at 2800 rpm and as a result of the success replicas were put on the market at £580 and called the C10 type but became better known as the Prince Henry model. In 1913 the engine capacity was increased to 3969 cc and the designation changed to 'C type'. Production continued until 1915.
Read more about this topic: Vauxhall Prince Henry