1955 GM L'Universelle Dream Truck.
The GMC L’Universelle concept truck was unveiled in 1955 to show forward thinking in the area of delivery vehicles. The futuristic styling of L’Universelle influenced design in the 1960s with the first compact passenger van from Chevrolet.
In January of 1955, GM debuted its '55 L'Universelle show van at the Waldorf Astoria Hotel in New York.
Perhaps the most dramatic design features of L'Universelle was its twin side doors, which opened up in a "folding gullwing" fashion, giving unfettered access to the cavernous rear cargo area. They gave a cutting-edge feature to this innovative idea truck. The model also offered a panoramic windshield design, which became very popular on many vehicles during the 1950s.
L'Universelle's interior was designed to work around the powertrain, which was situated in a front mid-engine location. Being a truck, it was lacking air conditioning and other conveniences.
The L’Universelle concept did influence other Chevrolet truck designs during the 1960s. It did not went into production although. Steering system, mid-engine location and gullwing doors made the costs high and the price expensive.