This S14B23 inline-four engine, originally from a 1989 BMW M3, has reportedly not been used since 1999 but its crankshaft turns freely. It comes mated to a Getrag 5-speed manual gearbox from another E30 M3 and includes the AC compressor, oil cooler, flywheel, clutch, engine harness, and Motronic ECU. The engine's original donor car received a salvage title in 1999 with 92,414 miles reported.