Pontiac Bonneville result being a fully equipped Bonneville could cost more than a larger, entry-level Cadillac. Only 630 units were produced that first year, making it one of the most collectible Pontiacs of all time. The following year it became a separate model, and it would endure until 2005 as the division's top-of-the-line model. The name was taken from the Bonneville Salt Flats in Utah, the site of much early auto racing and most of the world's land speed record runs, which was named in turn after U.S. Army officer Benjamin Bonneville. Bonneville became a separate model in 1958, available as a
Triumph Model H Model H was fitted with a 499 cc air-cooled four-stroke single-cylinder engine. It was also the first Triumph not to be fitted with pedals, so was a true motorcycle. Engine differences from the previous Model A included a single cam wheel with two cams replacing separate cam wheels for the inlet and exhaust valve, and new design of cylinder casting. Valve head diameter was enlarged and the valves were spaced further apart. The Model H was fitted with a Sturmey-Archer three-speed countershaft gearbox operated by a hand gear change lever. More than 30,000 Triumph Model H motorcycles had been produced