The BMW M6 and 635CSi (E24) exemplify true motorsport heritage, with the M6's handcrafted engineering from BMW Motorsport Garching and the prestigious S38B35 engine, a direct descendent of the iconic M1 supercar lineage. Between 1987 and 1989, these vehicles defined the grand tourer segment, combining luxury and performance in a way that resonates with collectors today. Approximately 5,800 units were produced globally, making them exceptionally rare and a coveted addition to any collection.
The appreciating value of clean, original-paint examples of the E24 M6 can reach upwards of $100K, especially for those with verified matching numbers. As collectors pursue the remaining pristine specimens, preserving this era's automotive artistry becomes paramount. At Great Lakes Givers, we encourage you to donate your cherished E24, honoring its legacy while supporting a worthy cause.
📖Generation guide
BMW M6 (E24) • 1987-1988
The US-market M6 features the S38B35 engine, producing 256hp. This limited two-year run established a high-value collector tier, particularly for original and well-maintained examples.
BMW M635CSi • 1984-1989
Euro-market variant with the S38B35 producing 286hp. Its distinct engine and performance specifications differentiate it from the M6, appealing to serious collectors.
BMW 635CSi (non-M) • 1984-1989
Powered by the M30B35 engine producing 182hp (US) or 218hp (Euro). Although it carries a lower value compared to its M counterparts, it still attracts enthusiasts.
Known issues by generation
The E24 M6 and 635CSi models have specific known issues that potential owners should be aware of. The S38B35 engine in the M6 is prone to timing chain issues, which should be monitored closely, particularly beyond 100K miles. The M30B35 in the 635CSi may face head gasket failures and cooling system failures, which require attention for long-term reliability. Rust is a frequent concern in Michigan, especially around fender lips and seams, making preventive maintenance crucial. Owners should engage with specialists who understand the nuances of these models to ensure they maintain their value and performance.
Donation value by condition + generation
The E24 M6 and M635CSi present a compelling investment opportunity within the blue-chip BMW collector market. Original-paint examples in halo colors can demand a premium, while matching-numbers authentication is essential for maximizing value. Furthermore, manual-transmission variants carry a significant collector premium over automatics. The collector landscape recognizes the E24 as a hand-built masterpiece, with its ties to BMW Motorsport Garching enhancing its desirability. Documented maintenance and service records, especially for timing chain replacements and engine work, are critical in determining value and attracting potential buyers.
Donation process for this model
Donating your E24 M6 or M635CSi to Great Lakes Givers entails a careful process to ensure your vehicle's value is accurately recognized. A qualified appraiser with expertise in vintage BMWs is strongly recommended to assess your vehicle and provide documentation for IRS purposes, particularly Form 8283 Section B. Given the high value of these models, it is important to ensure proper transport for your vehicle. Documentation proving matching numbers and original paint is essential, particularly if your vehicle is a grey-market import, which also necessitates compliance with federal regulations.
Michigan regional notes
In Michigan, vintage BMW enthusiasts are fortunate to have access to a network of independent restorers who specialize in the M series. Events like BMW CCA Bimmerfest and the Legends of the Autobahn concours present great opportunities for networking with fellow collectors and restorers. Given the state's salt-belt conditions, special attention should be paid to rust prevention for E24 chassis. Keeping your car in climate-controlled storage will help preserve its condition and value, especially as it becomes a prized collector's item.
FAQ
What maintenance does my E24 M6 or 635CSi require?
How do I authenticate my BMW's build plate?
Is there a premium for manual transmissions?
What are the specific rules for grey-market imports?
What is required for Form 8283 Section B?
How do I determine if my car has original paint?
What is considered the collector tier for E24 models?
Other model-specific guides
Vehicle Donation Resources & Guides
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