Originally working on the PC conversion of Wipeout for Psygnosis, Broadsword are most-known for Spirit of Speed 1937, a title that suffered greatly due to the original publisher being purchased and then ultimately was released too early under pressure from the new owner.
They went on to release a Paris-Dakar Rally title for PlayStation, but shut down a few years later.
SOS is a simulation of pre-war motor racing and included 15 vehicles and nine tracks selected from the period.