Pontiac did not release official power ratings for this engine, which had only been introduced earlier in 1955 replacing the straight eight, saying only that it had more than 300 hp (224 kW). A mechanical system built by Rochester, it was similar in principle, but not identical, to the contemporary Chevrolet Bel Air installed with the Rochester Ramjet continuous mechanical fuel injection ( closed-loop). Standard only for the Bonneville was Pontiac's first-ever fuel injection system. It entered the production lineup as a high-performance, fuel-injected luxury convertible version of the Star Chief in 1957, and was loaded with every available option as standard equipment to include leather upholstery, power adjustable front seat, power windows, power steering, power brakes and power convertible top with the exception of air conditioning and a continental kit. The Bonneville name first appeared in 1954 on a pair of bubble-topped GM Motorama concept cars called the Bonneville Special, sharing an appearance with the Chevrolet Corvette. 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. The Bonneville (known as the Parisienne in Canada until 1981), and its platform partner, the Grand Ville, are some of the largest Pontiacs ever built in station wagon body styles they reached just over 230 inches (5.8 m) long, and at 5,000 pounds (2,300 kg) and more were also some of the heaviest cars produced at the time. The brand was introduced as a limited production performance convertible during the 1957 model year.

Bonnevilles were full-sized, with the exception of a brief period of mid-size between 19. The Pontiac Bonneville is an automobile built by Pontiac from 1957 until 2005. Transverse front-engine, front-wheel drive (1987–2005)

1960 pontiac catalina conv