The chassis was designed by Hervé Guilpin and Tim Wadrop[1] and was updated by Don Halliday for the 1982 season, for which it was known as the D5.

[1] The HGS1 made its first appearance partway through the 1981 Formula One season at the Belgian Grand Prix, where it was driven by Slim Borgudd.

[1] Salazar finished fifth at Imola although this race saw a reduced field of entrants due to a boycott by most of the FOCA aligned teams.

The drivers would generally qualify towards the rear of the field although Winkelhock did start the United States Grand Prix from fifth on the grid.

There was the odd driver error,[1] notably when Salazar collided with Brabham's Nelson Piquet at the 1982 German Grand Prix.