BMW 6 Series

We've spotted 2 BMW 6 Series listings since 2022, including one asking $19,995. Each one is archived below with its photos, mileage and what the seller disclosed. Buying one: The E24 6 Series coupe was built from 1976 to 1989, and the 633CSi and 635CSi used BMW's long-lived M30 inline-six, a durable engine. The body is the bigger worry: check the front wings, sills, jacking points and the area around the rear window for rust. Expect electrical gremlins, and budget for cooling-system work on any car without recent records.