Vauxhall produced its first car in 1903, and Vauxhall Motors has been a subsidiary of U.S.-based General Motors since 1925. Early Vauxhalls were both fast and durable. In 1909, a rebodied A-type Vauxhall became the first in its class to exceed 100 mph over a flying mile. The modern, low-slung 1911 C-type, or 'Prince Henry' Vauxhall, is often called the first production sports car. The pre-World War I E-type was among the world's fastest production cars, with a top speed of around 85 mph. Vauxhall remained a relatively low-production manufacturer until its acquisition by General Motors. In the 1930s, the company's emphasis shifted to the production of less-expensive cars in larger numbers, and their popularity helped make Vauxhall a major manufacturer. In the 1960s, Vauxhall began building the Viva, a small car first produced by German GM subsidiary Opel as the Kadett. The Astra hatchback, introduced in 1979, was also an Opel design. It is now sold worldwide as an Opel, Vauxhall, Holden, or Chevrolet. The hottest of all Astras is the 2-liter, 240 horsepower VXR. Its big brother is the Monaro VXR, based on the Monaro produced by Holden, GM's Australian subsidiary. Powered by the 403 horsepower V8 used in the Chevrolet Corvette, this high-powered flagship of the Vauxhall line has a top speed of 180 mph.