Pierre Bourgeois was a famous French industrialist who was also the owner of the famous firm called Marconi, a recording firm that was merged from HMV (His Master's Voice) and Columbia Records in France.

He wanted a bus designed for a troupe that could be a 'floating stage'. His requirement - the upper canopy should open and turn into a stage for the orchestra. At the rear of the vehicle and hidden from the outside, a mini lift allowed singers to access the roof to before the public.

After two years of designing, the Superbus was ready in 1952. It was 14.3 m long and 2.5 m wide with a Panhard truck that was coupled to this unique trailer. The driver's cabin included a mixer with 125 buttons and joysticks and 10 amplifiers for transmission and recording, a showroom of Marconi equipment, and a panoramic upstairs lounge with bar and bench.

A very rarest-of-rare collectible.