The BMW M6 and 635CSi (E24) represent the pinnacle of grand touring excellence produced from 1987 to 1989, bridging the golden era of BMW's M division with a legacy of performance and luxury. With only around 5,800 units produced worldwide, these vehicles are not just cars; they are investments in automotive history. The allure of the E24 lies in its hand-built BMW Motorsport Garching craftsmanship and the remarkable S38B35 engine that echoes the lineage of the M1 supercar.
In Maine, the E24 M6 and 635CSi serve as a testament to the spirit of driving and commitment to automotive culture. Their manual transmission options are particularly prized among collectors, creating a premium that amplifies their significance. By donating your M6 or 635CSi, you are not just contributing to a charitable cause but preserving a piece of automotive art that deserves recognition and care. Each donation is an investment in maintaining the legacy of these remarkable machines.
📖Generation guide
E24 M6 • 1987-1988
The U.S.-market M6 boasts the powerful S38B35 engine, producing 256hp. This two-year limited production run is highly sought after for its performance and exclusivity.
Euro M635CSi • 1984-1989
Featuring the S38B35 engine rated at 286hp, this model remains distinct for its European specifications and homologation, appealing to collectors seeking authentic performance.
635CSi • 1984-1989
The non-M variant with the M30B35 engine produces 182hp, offering a lower-tier value compared to its M designation counterparts but still maintains classic BMW allure.
Known issues by generation
The E24 M6 and 635CSi feature distinctive service requirements essential for longevity. The S38B35 engine in the M6 is known for its timing chain and guide issues, typically requiring replacement between 100,000 and 150,000 miles. Others, like the M30B35 found in the 635CSi, often experience head gasket failures. Rust is a critical concern in Maine due to its salt-belt environment, especially at the A-pillar drip rails. Restoration and preservation are vital to maintaining the integrity and value of these vehicles, making preventive service critical. Engaging with qualified technicians who specialize in vintage BMWs ensures that each model continues to perform at its best.
Donation value by condition + generation
The E24 M6 and M635CSi exemplify appreciating assets within the collector car market. Models in pristine original condition can command values ranging from $50,000 to over $130,000 at auction events, such as those hosted by RM Sotheby's and Gooding & Company. Key value drivers include matching-numbers engine blocks and comprehensive maintenance histories, particularly involving the S38B35 engine. The market also distinctly favors original paint and build authenticity. Documentation of service by certified BMW technicians enhances value further, emphasizing the necessity for detailed records in preserving these extraordinary automobiles.
Donation process for this model
Donating your E24 M6 or 635CSi through Maine Motors Giveback involves a clear process. It is highly recommended to engage a qualified appraiser with documented experience in BMW M vehicles to help ascertain the fair market value, which is crucial for IRS Form 8283 Section B. Given the collector value of these cars, each donation is significant, often exceeding $5,000 by multiples. Ensuring your vehicle is accompanied by all necessary documentation, including the BMW Motorsport Garching build plate and verification of matching numbers, is essential for a successful donation.
Maine regional notes
Maine offers a unique landscape for M6 and 635CSi owners, with several independent BMW specialists available for maintenance and restoration. Local events such as Bimmerfest and Legends of the Autobahn connect you with fellow enthusiasts and experts. The preservation of these vehicles is particularly relevant given Maine's salt-belt challenges, making access to climate-controlled storage essential for low-mileage examples. Engaging with the community ensures that your vehicle receives the attention it deserves.
FAQ
What are the timing service intervals for the S38 engine?
How do I authenticate my M6 or M635CSi build plate?
What is the significance of the manual transmission in these models?
What documentation is needed for grey-market imports?
How can I verify if my BMW is a factory-color change?
Is a qualified appraiser mandatory for my donation?
What are the signs of timing chain issues on the S38 engine?
Other model-specific guides
Vehicle Donation Resources & Guides
In-depth tax, paperwork, and donation logistics guides published by our editorial team — bookmark these before you donate.