page_title: Brough Superior Austin Four
section_title: Surviving examples
hierarchical_section_title: Brough Superior Austin Four / Surviving examples
caption_attribution_description: Autostadt Wolfsburg - motorrad ikonen - Brough Superior Four 1932 1
context_page_description: The Brough Superior Austin Four was a limited-production motorcycle designed and manufactured by Brough Superior of Nottingham, UK in 1932. It was listed in the 1932 Brough Superior catalogue as the 'Straight Four' but it was commonly known as the Brough Superior Austin Four, or BS4, or '3-wheeled Brough'. The machine is unique in its design, being powered by a modified Austin 7 automobile engine and gearbox unit, from which a driveshaft emerges on the centre-line of the motor. Rather than design a new gearbox, George Brough had the inspiration to keep the central driveshaft, and use a pair of close-couple rear wheels driven by a central final drive box. This 3-wheeled design was legally considered a motorcycle as the wheel centres were within 24". The Brough Superior-Austin Four created a sensation when revealed at the 1931 Olympia Motorcycle Show.
context_section_description: Of the ten Brough Superior Austin Fours built, (eight in 1932 and one in both 1933 and 1934), a total of nine have survived to this day. Of these, two are in the US, three are owned by UK enthusiasts, two are in Germany, and one is known to have been scrapped in Anglesey, Wales. One is at the Southward Car Museum in Otaihanga on New Zealand's North Island,. Recently the ninth surviving model has been discovered in the collection of the late Frank Vague near Bodmin, Cornwall.
caption: The unusual twin rear wheel layout allows room for the wheels to be driven by the standard Austin prop shaft.
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