final 50 M30 blocks were shipped to Alpina for use in the final 50 B10 Biturbos. M102 The M102 was produced from 1980 to 1982. It was BMW's first turbocharged six-cylinder engine. The M102 (also known as M30B32LAE) has a displacement of . The KKK K27 turbocharger produces of boost and an air-to-air intercooler is used. The compression ratio is 7.0:1. The M102 produces and was used in the E23 7 Series, in the model was designated "745i". The M102 was not available in right-hand drive cars, leading to the South African 745i using the BMW M88 naturally aspirated DOHC straight-six engine instead. Applications: 1980–1982 E23 745i M106 The M106 (also called M30B34MAE) replaced the M102 and was produced from 1982 to 1986. Some of the M106's upgrades over its predecessor are a result of the M30B34 version of the M30, which was also released in 1982. These upgrades include Bosch Motronic engine management and an increased displacement to . The compression ratio was increased from 7.0:1 to 8.0:1. Peak power output is the same as the M102, however it occurs at lower RPM and peak boost is reduced from . There was no direct successor to the M106, however BMW's next turbocharged petrol engine was the BMW N54, introduced in 2006. Applications: 1982-1986 E23 745i Motorsport The M30 powered a series of E9 CSL and E24 6 Series coupes to European Touring Car Championship (ETCC) throughout the 1970s and into the middle 1980s, even though a more powerful DOHC 24-valve head had been developed for high-performance motorsports and street use. The BMW M88 high-performance engine is based on the M30 block. See also BMW BMW M10, the four-cylinder engine that the M30 was based on. BMW M20, the smaller straight-six engine which was sold alongside the M30 for many years. BMW M88, the high-performance, DOHC, straight-six engine that was sold alongside the M30 from 1978-1989 BMW S38, the catalyzed version of— and ultimately the successor to— the M88, which was sold alongside the M30 from 1986-1995. List of BMW engines References M30 Straight-six engines Gasoline engines by model