in 1978 saab introduced a turbocharged version of the b engine in the 99 turbo model. a key member of the team that developed the turbo engine was per gillbrand, who earned the nicknames "turbo-pelle" (turbo-geek) in swedish and "mr. turbo" in english for his work with forced induction. mellde was also on the development team, and he and gillbrand were also joined by bengt gadfelt, who came to them from scania where he worked on turbocharging saab-scania trucks, and englishman geoffrey kershaw, who had apprenticed at rolls-royce and would go on to found turbo-technics ltd.