The 2002 Turbo was launched at the 1973 Frankfurt Motor Show. This was BMW's first turbocharged production car. It produced 127 kW (170 hp) at 5,800 rpm, with 240 N⋅m (177 lbf⋅ft) of torque. The 2002 Turbo used the 2002 tii engine with a KK&K turbocharger and a compression ratio of 6.9: 1 in order to prevent engine knocking. Kugelfischer mechanical fuel injection was used, with integrated boost enrichment feature. The 2002 Turbo was introduced just before the 1973 oil crisis, therefore only 1,672 were built.