Vehicle Details
- Year: 1991
- Make: BMW
- Model: 850i
- VIN: WBAEG231XMCB72106
- Mileage Shown: 104,650
- Transmission: Automatic
- Title Status: Clean
- Color: Black
- Seller Type: Private Party
- Location: Edgewater, NJ 07020
- Lot #: V-0034553
Featuring a naturally aspirated V12 engine, this 1991 BMW 850i comes finished in Black over a matching leather interior and features Dinan modifications including engine and transmission performance chips, a big brake kit, 18” wheels, an exhaust, a 3.91:1 limited-slip differential, and Stage 1 suspension upgrade. It has also been modified with camber plates, a reinforced subframe, and extrude-honed intake manifolds. The car was previously owned by an avid BMW enthusiast and benefits from an extensively documented maintenance history. This E31 is now being offered for auction by its third owner out of New York while showing approximately 104k miles on the odometer.
The first-generation 8-Series (E31) was designed using CAD modeling and features a unique pillarless window design. This 1991 example is finished in Black and rides on upgraded 18”x9” Dinan wheels dressed in 265/35 Continental ExtremeContact DWS tires. The unused original spare wheel and tire are mounted in the trunk. Other equipment includes pop-up headlamps, integrated front fog lights, Dinan quad exhaust tips, M-branded front brake calipers, and a power-operated sunroof. The seller notes the front valence and spoiler have been replaced, the front bumper has been refinished, and a scratch is present on the front bumper cover as well as some minor swirls and surface scratches in the paint. Detailed images are provided in the gallery along with a clean CARFAX report.
The cabin is upholstered in black leather with contrasting grey carpets and headliner. Accessories include a leather-wrapped four-spoke steering wheel, 850i branded floor mats, dual-zone automatic climate control, cruise control, power-adjustable front seats, power windows and mirrors, an onboard computer, an anti-theft device, and an original cassette stereo. The seller notes a few cracks are present on the front seats and all gauges and accessories remain fully functional.
Power comes from a naturally aspirated 5.0-liter M70B50 V12 engine which was rated at 296 HP and 332 lb.-ft of torque stock and is said to now produce 354 HP and 390 lb.-ft of torque. The rear wheels are driven by way of a 4-speed automatic transmission with an upgraded 3.91:1 limited-slip Dinan differential. The engine and transmission computers have also been upgraded with Dinan Eprom performance chips. Other upgrades include a Dinan free-flow exhaust system, extrude-honed intake manifolds, a Dinan big brake kit, and a Dinan Stage 1 suspension kit with Bilstein shocks and H&R springs. The seller has provided the following list of services performed at the corresponding mileages:
89,080
- Engine and codes check
- Changed oil and filter
89,562
- Replaced coolant overflow tank, thermostat, and radiator cap.
- Resynchronized sunroof lid, flush with roofline
90,121
- Replaced Engine fuel hoses and rerouted. Replaced hardware and clamps.
90,140
- R&R Thrust arm assembly.
- Replaced front and rear springs, with shocks and hardware.
- Full alignment
90,597
- Replaced fan clutch assembly.
91,160
- Replaced failed brake light switches
91,425
- DME & EGS Dinan Eproms. (engine and transmission tune)
- Installed new 18x9 Dinan wheels
- Installed 3/8" Hi-po Dinan wheel blade and spacers
- Installed Dinan Differential
- Replaced parking brake shoes
- Chassis/sub-frame upgrade
- Installed front and rear sway bars.
- Welded sub-frame
- Installed 265/35ZR18 Bridgestone tires (4)
- Full wheel alignment
92,500
- New windshield
- Brake system flushed
- Transmission cooler lines chafing; insulated them apart
- A broken heatshield replaced
- Dinan Free-flow EXH E31 exhaust installed
- Dinan wheel hub cap installed
92,742
- Install exhaust heatshields
93,334
- Dinan big brake kit upgrade
- Replaced brake hoses
- Brake system flush
- Oil change
93,823
- Reseal intake manifold
- Replaced valve cover gaskets. Torqued all bolts to Spec.
- Replaced failed distributor caps and rotors
- Replaced breather hoses
- Extrude hone of manifolds
- Throttle body gasket replaced
- E31 front lift pad replaced
94,000
- Trans area- replaced bleeder screw, shroud rivets, and hose clamps
- Oil and coolant change
- Front valance and front spoiler replaced
95,012
- Replaced fuel injectors
95,496
- R&R center console and phone to replace center ashtray and trim
- Nose repairs and repaint
95,781
- Dinan spring set
96,519
- Replaced front brakes
96,622
- Oil change
- New front brake pads
- New brake fluid
97,095
- Replaced power steering filter and engine drive belts.
- Resealed timing chain tensioner
- Performed brake fluid renew
- Performed automatic transmission service
- Relocated horns to a protected location
- Serviced both batteries
- Replaced dust filter
- 4 new tires
98,249
- Replaced passenger-side battery
99,052
- Replaced front and right rear lift pad
- Replaced windshield washer pump and grommet
- Replaced engine cooling fan clutch
99,213
- Full oil change
- Replaced radiator assembly.
- Replaced auxiliary water pump and heater water valves
- Flushed coolant
100,302
- Replaced spark plugs and plug wire sockets
- Front anti-sway bar link heim joint loose in adjustment sleeves, secured heim joints
- Replaced brake master cylinder and bled system
- Replaced brake booster assembly
100,929
- Replaced tires
- Replaced bushings
- Replaced center link
- Alignment
101,053
- AC system leaking low side Schrader valve. Recharged and leak test performed.
- Full oil change
101,140
- Full oil change.
- Replaced batteries
- Drained brake master cylinder and cleaned reservoir. Renewed brake hydraulic system.
- Coolant change
102,087
- Oil change
102,184
- Replace engine mounts
- New spark plugs
- Front and rear brake rotors and brake pads
- Alignment
104,193 (6/14/23)
- Full service and diagnostic inspection
- Replaced 2 Interstate batteries (Interstate MTX-49/H8). Comes with 36-month warranty
- Replaced 2 front sway bar links.
- Replaced 2 camshaft position sensors
- 2 new ignition harnesses
- Full re-wiring of the ignition system
- Fresh oil change
- Topped off all fluids
This sale will include extensive service records, owner’s manuals, a toolkit, a spare tire, a car cover, and a clean title. The seller notes the last CARFAX service entry in August 2020 never took place and the mileage was reported incorrectly.
The seller would like you to know: “This 850i was a childhood dream fulfilled. A spare no expense example. Puts a smile on my face to this day, seeing it on my lift each and every morning. It’s fast, nimble, and eye-catching. A true neck breaker. Modifications were tastefully executed, in line with this era, maintaining nostalgia. Interior is all original with factory components. Heated garage kept on a battery tender. A full diagnostic and service in June. 500 miles of testing before sale. Happy bidding, and to the next owner, have fun!”
Auction Results
- Sold for: $15,250
- Auction End: Oct 12, 2023 07:30:50PM UTC
- Number of Bids: 6
Comments (17)
Sold for $15,250
Bid in the amount of $15,250
Few hours to go!
Few (driven) 850's in this condition exist and ever come up for sale with modifications like this, records like this, and NO expense spared! I searched high and low for this car for a long time . Luck was on my side.
I'd do it all over again if I had the chance.
Answered all PM's so far and I'm around for any questions.
I'm going to lift the reserve, someone is going to own this beaut!
Bid in the amount of $15,000
Bid in the amount of $12,000
Bid in the amount of $10,000
Bid in the amount of $6,000
@Avdo it sits on a collector car policy. But either way, we can work something out. PM me for car's location and all..
Is a local test drive possible?
Bid in the amount of $5,000
PCAR community, wanted to add we found a second key fob. Hidden in the spare :)
A start-up, engine bay at idle, and a driving clip added!
A pre-list full diagnostic and service in June at Bergen Imports, about $4,000. Added 500 miles after. Car is dialed!
Bid with confidence! Top tier equipment, a lot of records, sparing no expense!
I'm here for any questions. Best of luck!
Also.. I contacted the previous owner. An elderly gentleman in Seattle that had it for almost 20 years. A collector of a rare mix of classic and modern cars. It was one of his favorites. Check out the records of his meticulous maintenance. A true enthusiast's example. Garage kept under both ownerships and if something showed wear, it was immediately replaced.
@Abe , a dream to own. Poster car for me when I was small. 850's are forever timeless!
@Harris1 wow!! This is stellar. Miles are not that high, at all! Modifications are perfect. I’m excited to see the numbers, bidding war loading?!!
@Joe-Iannacone at around 91,400 miles many modifications were made. Additional modifications were made since. Executed by renowned shops in Seattle and NJ. I'd estimate $80-90k in modifications and servicing in the last 13,000 or so miles. Car is sound!
@Harris1 I LOVE this. FINALLY a tastefully modified 850.. It’s fast af! Modifications like the exhaust heat-shielding and Dinan work, etc were last 15,000 miles?