E39 M5 powertrain conversion, with the 4.9-liter S62 V8, six-speed manual transmission, driveshaft, and rear differential sourced from a donor M5. The engine was installed in 2017 and received VANOS solenoid pack o-rings, an oil filter housing mount, an oil level sensor, and fresh oil in March 2025. The Carfax report lists a 2005 accident, and the seller states that the front bumper was replaced as a result and later repainted along with the trunk lid.