What is m20 b25?

The M20 B25 is an inline-six engine produced by BMW from 1986 to 1991. It has a displacement of 2.5 liters and produces 168 horsepower at 5,800 rpm and 164 lb-ft of torque at 4,000 rpm. The engine features a single overhead camshaft with two valves per cylinder and an electronic fuel injection system. The M20 B25 is known for its reliability and longevity, and was used in various BMW models including the E30 and E34. It is also used in motorsports, such as drifting and touring car racing.