Online listings describe three different 1973 BMW E9 coupes, each with separate ownership histories and modification or restoration work. One listing presents a 1973 BMW 3.0CS 4-speed coupe, originally sold new in Denver and stored by the second owner from 1983 to 2019. After being purchased out of storage, it is refurbished by Farland Classic Restoration between 2021 and 2024, with roughly $45,000 reported in work covering exterior paint polishing, repairs to the rear bumper, interior reupholstery, restoration of teak trim, and various mechanical items including radiator and carburetor rebuilds, sealing work, hoses, and belts. It is powered by a 3.0-liter inline-six paired with a four-speed manual transmission and includes features such as air conditioning, power windows, and replica Alpina-style wheels. A second listing describes a 1973 BMW 3.0CS 5-speed coupe acquired in 1999 and later repainted white. It is equipped with an M30 3.5-liter inline-six and a five-speed manual transmission, along with a sliding steel sunroof, power windows, air conditioning, and updated audio equipment. The third listing focuses on a 1973 BMW 3.0 CSL, described as one of 1,265 homologation specials built from 1971–1975, delivered new in France and later imported to the US in 2014. It reports extensive work over $45,000 in 2021, including resealing the rear differential and overhauling suspension and brakes, and offers documentation such as manuals, BMW certificate, and service records.