The BMW M6 and 635CSi (E24) stand as icons of the blue-chip BMW M heritage, bridging luxury and performance. Produced between 1987-1989, the US-market M6 and Euro-market 635CSi combined engineering excellence with rare craftsmanship, resulting in only about 5,800 units worldwide. These grand-tourers, powered by the legendary S38B35 engine, have gained appreciation in the collector market, with pristine examples reaching values as high as $100K or more. Ownership of such a model requires a commitment to preservation and maintenance, emphasizing respect for the intricate engineering that defines these vehicles.
Donating your E24 M6 or M635CSi to RevUp Richmond not only contributes to a worthy cause but also ensures that these vehicles are cherished and cared for by enthusiasts who understand their importance. The manual-transmission M6 variant holds a special collector's premium, and we strongly recommend engaging qualified appraisers and vintage BMW specialists to validate the authenticity and condition of your vehicle. Together, we can celebrate the legacy of the BMW M lineage while supporting our local community.
📖Generation guide
E24 M6 • 1987-1988
The pinnacle of BMW's 1980s performance, featuring a 3.5L 256hp S38B35 inline-six. Exceptional collector's item with strong market demand.
E24 M635CSi • 1984-1989
Euro-market variant boasting 286hp S38B35 engine, blending performance with grand touring elegance. Distinct value tier from the M6.
E24 635CSi • 1984-1989
The non-M variant powered by the 3.5L M30B35 engine; less performance-oriented yet still respected among enthusiasts for its style and comfort.
Known issues by generation
Like many classic BMWs, the E24 M6 and 635CSi have specific known issues that require attention. The S38B35 engine in the M6 is prone to timing chain rattle, necessitating replacement of the timing chain and guides at approximately 100-150k miles, a service that can range from $3-6k. Rusting at the A-pillar drip rail and other seams poses a significant risk, especially in salt-belt regions. The M30B35 engine in the 635CSi variant may face common head-gasket failures, alongside cooling system issues that could incur repair costs of $2-4k. Importantly, having documentation for engine maintenance and the BMW Motorsport Garching build-plate is critical for collectors.
Donation value by condition + generation
The E24 M6 and M635CSi represent a unique collector opportunity, with values varying significantly based on originality and condition. Hand-built by BMW Motorsport Garching, these vehicles command a premium particularly when matching-numbers and original paint are verified. Manual transmission models, like the M6, carry a substantial premium over their automatic counterparts. Collectors are encouraged to maintain proper documentation and engage qualified appraisers for valuations, as these vehicles often exceed the $5k threshold by considerable margins. Original-paint examples in iconic colors achieve the highest auction values at esteemed events like RM Sotheby's and Pebble Beach Concours.
Donation process for this model
Donating your BMW M6 or 635CSi to RevUp Richmond involves several critical steps to ensure proper valuation and compliance. We strongly recommend that donations be assessed by qualified appraisers with documented expertise in vintage BMWs, particularly those with a focus on the M-series. This is essential for IRS Form 8283 Section B compliance, as every E24 M6 crosses the $5k threshold. Documentation must include BMW Motorsport Garching build-plate authentication and matching-numbers verification. For grey-market Euro-import vehicles, adhering to federal 25-year rule and EPA compliance is also paramount.
Richmond regional notes
For E24 M6 and 635CSi owners in Richmond, having access to reputable vintage BMW specialists is crucial for maintenance and restoration. The local community, including events like Bimmerfest and Vintage at Saratoga, offers a great platform for connecting with fellow enthusiasts and resources. It’s important to recognize the differences in preservation challenges between salt-belt and sun-belt climates, as this significantly impacts long-term condition. Additionally, climate-controlled storage options within Richmond are valuable for maintaining low-mileage examples.
FAQ
What are the recommended service intervals for the S38B35 engine?
How can I verify the authenticity of my M6 or M635CSi?
Why is there a premium for manual transmissions in the E24?
What should I know about grey-market Euro-import compliance?
What are the signs of factory color change in a BMW M car?
Is a qualified appraiser necessary for donation?
What are the common issues with the M30B35 engine in 635CSi?
Other model-specific guides
As an owner of a BMW M6 or 635CSi (E24), your support in donating your vehicle can make a significant impact in preserving these iconic pieces of automotive history. By contributing to RevUp Richmond, you not only ensure these stunning examples remain cherished, but you also join a community dedicated to celebrating the legacy of BMW M heritage. Your donation can help future generations appreciate the craftsmanship and performance uniquely offered by the hand-built BMW Motorsport Garching models.
Vehicle Donation Resources & Guides
In-depth tax, paperwork, and donation logistics guides published by our editorial team — bookmark these before you donate.