Triumph Bonneville T120 was based on the American X-15 rocket plane. In 1966 Detroit Triumph dealer Bob Leppan raised the record to 245.66 mph (395.3 km/h) with his Gyronaut X-1, powered by two 650 cc Triumph engines. For the next few years, Triumph fitted Bonneville roadsters with "World's Fastest Motorcycle" stickers. Triumph Bonneville T120 The Triumph Bonneville T120 was a Triumph Engineering motorcycle made from 1959 through 1975. It was the first model of the Bonneville series, which was continued by Triumph Motorcycles Ltd. The T120 was discontinued in favour of the larger-engined T140. It was brought back in 2016 with a host
Pontiac Bonneville "Safe-T-Track" differential, used to minimize wheel spin, was an option beginning in 1959. The Bonneville remained Pontiac's costliest and most luxurious model throughout the 1960s and was instrumental in pushing Pontiac to third place in sales from 1962 to 1970. The distinctive protruding grille made its appearance on all Pontiac products during the early 1960s, and was a modern revival of a similar appearance on Pontiac products during the 1930s and early 1940s, as demonstrated on the Pontiac Torpedo. The Bonneville differed from its lesser Catalina and Star Chief counterparts by featuring more luxurious interior trim with upgraded cloth and