The car debuted at the 1948 London Motor Show and was based on the Aston Martin Atom prototype.

The Atom was an Aston Martin project developed during World War II.

Shortly after David Brown purchased Aston Martin, construction began on an updated version.

Along with the cycle-wing Spa car, Brown directed Aston to build a 2-seat roadster with a more conventional body for the London show.

13 of the cars wore an open roadster body, as shown in London, complete with a three-part grille suggesting the later Aston Martin design.