In 1928, Guy took control of fellow Wolverhampton manufacturer the Star Motor Company, who had seen declining sales throughout the decade, in an attempt to expand their luxury car manufacturing. Under Guy, Star Motors moved to a new factory in Bushbury and the range of vehicles was narrowed to prevent competition against itself. Despite this, Star continued to struggle and a loss was made on every car sold. The Wall Street Crash had a crippling effect on industry and the subsequent recession meant that Guy could no longer afford to fit out Star's Bushbury plant and, in 1932, that company entered receivership.