Highlights
- One of the most distinctive examples of the range-topping BMW 850CSi
- Comprehensive ZEEMAX bodywork upgrades with widened arches
- Meticulously documented transformation with comprehensive service records
- Unique tricolour pearlised paint finish
- Featured across eight pages in Total BMW Magazine (May 2006)
The Appeal
The BMW 850CSi represents the pinnacle of BMW's grand touring ambitions in the 1990s, featuring the magnificent S70 V12 engine developed by BMW's M division. As one of only 1,510 850CSi models ever produced worldwide, this particular example stands out even further with its comprehensive ZEEMAX body modifications and striking aesthetic.
Our 850CSi has been transformed from its original Lagoon Green into a striking light green tricolour pearlised finish, complemented by dramatically widened steel arches housing substantial 245/35/18 front and 335/30/18 rear wheels. The extensive documentation, including complete service records, modification portfolio, and an eight-page feature in Total BMW Magazine from May 2006, chronicles this car's journey from factory specification to its current highly individualised form.
For collectors of rare BMW M cars seeking something truly unique, this modified 850CSi represents an opportunity to acquire a piece of BMW history with undeniable presence.
For collectors of rare BMW M cars seeking something truly unique, this modified 850CSi represents an opportunity to acquire a piece of BMW history with undeniable presence.

History and Paperwork
- UK RHD car first registered in 1993
- Featured across eight pages in Total BMW Magazine (May 2006)
- Comprehensive service records, MOT certificates and repair invoices
- Modification portfolio
- Original Total BMW magazine feature
- Original owner's handbook set
- Meticulously documented transformation

The Condition
- Comprehensive ZEEMAX bodywork upgrades
- Wide steel arches housing 245/35/18 front and 335/30/18 rear wheels
- Widened front and rear bumpers
- Deeper side skirts
- Rear boot spoiler
- Bonnet vents
- Refinished in 2011 with light green tricolour paint, creating a pearlised effect
- Previous respray in Aqua Blue in 2004 following major body upgrades
- Originally finished in Lagoon Green
- Body appears in smart condition overall with a few marks and some corrosion spots
- Interior in good condition with only light wear

The Mechanics
- 5.6-litre NAS70 V12 engine
- Six-speed manual transmission
- Race-inspired exhaust system
- Currently exhibits symptoms of excessive oil blow-by, likely linked to piston ring or cylinder wear, which is a known issue among S70 engines
- Requires mechanical attention, which the vendor has factored into their expectations at auction
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Comments
diegoka••••
Hi Glyn, advert description stands „Currently exhibits symptoms of excessive oil blow-by, likely linked to piston ring or cylinder wear” Question is how many cylinders are affected and how badly cylinder walls scored? Another question, any rust issues on jacking points or any other underneath car area please? Best regards
Jasonor••••
SellerYes, the drilled hole is for the overbuilt pressure escape.
Glyn Jo••••
Wide-bodied and modified by myself, photoshot then by Trawsfynydd Power Station. See Private plate, Glyn Jones.