This 2003 BMW M5 was first delivered to BMW Northwest of Fife, Washington, and it was initially modified under prior ownership. Its twin-turbocharged 5.3-liter Vortec V8 is paired with a Tremec T56 Magnum F six-speed manual transmission, and additional modifications include a rebuilt and modified limited-slip differential, a dual 3″ exhaust with stainless-steel boost-actuated cutouts, quad projector headlights, adjustable BC Racing coilover suspension with Swift springs, replacement Caramel leather upholstery, a dashboard-mounted tablet, a custom sound system…