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1992 Alpina B12 5.0 E31, one of 97

An Alpina V12 whose production number the seller will not publish

01/155Front three-quarter 01Exterior

Overview

Compiled by Kept from the seller's intake answers, the documents supplied and published records for the model. The seller does not write or edit this section, and nobody from Kept has inspected the car.

10 of 11 intake answers8 documents supplied6 service recordsPublished records for the model

This 1992 Alpina B12 5.0 is finished in Alpina Blue over grey leather on the twenty spoke Alpina wheels, and is offered from Bryanston by , its third owner and the keeper of the car for sixteen years. It is built on the E31 8 Series with the 5.0 litre V12 to Alpina specification, driving through the six speed manual, and shows 108,600km. Alpina built 97 of them.

The mechanical file is the strongest part of the lot. Fuel pumps and lines in 2017, a clutch, pressure plate and rear main seal in 2020 with the gearbox out, the entire cooling system including a recored radiator in 2023, and a pre-sale service in June covering both banks with the fuel filters and both engine management units read and printed. On a V12 with two of everything, a file that says which bank was done is worth more than a file that says the car was serviced.

One question went unanswered, and the reason given is unusual enough to be worth reading in full in the transcript. Asked to publish the Alpina production number from the console plaque, the seller declined, saying that publishing the number of a car from a run of 97 is an invitation to have it cloned onto another E31, which he says has happened to Alpinas before. He has published a photograph of the plaque with the number obscured, and has offered to give the number to Alpina directly, or to a bidder who registers with Kept, for verification.

The room is not obliged to accept that reasoning and the decline stands as a decline either way. What a bidder is left with is a car whose specification and history are documented in detail and whose single identifying number is withheld on an argument about fraud. The other flaws stated are slow pop up headlamp motors, air conditioning that is poor at idle, a cracked driver's bolster seam, a repaired kerb strike on the front left wheel and a relaid deco stripe on the right rear quarter.

Model background

Alpina is not a tuner in the sense the word is usually used. It is a manufacturer in its own right under German law, with its own type approval, its own vehicle identification numbers and its own warranty, building complete cars on BMW bodies with reworked engines, its own suspension and gearing, and the deco stripes and twenty spoke wheels that make one recognisable across a car park.

The B12 5.0 was built on the E31 8 Series between 1990 and 1994 and 97 were made. Alpina reworked the M70 V12, revised the management and the exhaust, fitted its own suspension and, on the cars ordered that way, put a six speed manual behind a V12, which is a combination BMW itself never sold in this shape and which is the reason the manual cars are the ones collectors chase.

Every Alpina carries a production number on a console plaque, and the factory keeps the build record against it. That number is the identity of the car and it is also, on a run this small, the thing a cloner most wants. Alpina will confirm a car's build to an enquirer, which makes the number both the proof and the risk, and this listing is a working example of an owner deciding which of those two he cares about more.

Essentials

Lot
KPT-081
Year
1992
Model
B12 5.0 E31, one of 97
Mileage
108,600 km
Transmission
6-speed manual
VIN
WAPBB53021BB12047
Location
Bryanston, Johannesburg
Seller
bryanston_b12
Seller is
Private, third owner, 16 years
Watchers
505

Seller interview

Before the car went live, the seller answered a standard set of questions plus a set our tools generated for this model from its documented failure modes. The full transcript is public, including anything they declined.

Kept score
8.2/10

10 of 11 answered, 1 declined. A high score means the seller told you more, not that the car is better.

8.0/10medium confidence

Inferred from the seller's answers and this model's known failure points. Nobody from Kept has inspected this car.

1 question the seller declined

  • What is the Alpina production number on the console plaque, so that the build can be confirmed with the factory?

    Every Alpina carries a production number and Alpina holds the build record against it. On a run of 97 cars it is the only identity check that matters.

Known flaws

The seller's own list of what this car needs money spent on.

  • 01The Alpina production number on the console plaque is not published, the seller declined at intake
  • 02Both pop up headlamp motors are slow, the left slower than the right
  • 03Air conditioning cools adequately at speed and poorly at idle, the system has been regassed twice
  • 04Driver's seat leather is cracked along the outer bolster seam
  • 05Front left wheel has a repaired kerb strike, professionally done, visible under close inspection
  • 06Original Alpina deco stripe on the right rear quarter has lifted at one edge and been relaid

Service record

2025-06
108,600 km
Pre-sale service, both banks: plugs, filters, coolant, fuel filters, both ECUs read and printed, brake fluid flush
2023-04
104,100 km
Water pump, thermostat, all coolant hoses, radiator recored, expansion tank
2020-10
98,700 km
Clutch, pressure plate and release bearing, gearbox oil, rear main seal renewed while the box was out
2017-08
89,400 km
Fuel pumps both sides, fuel lines, tank sender, all filters
2013-02
74,800 km
Suspension overhaul, Alpina specification dampers and bushes, geometry set
2009-05
61,200 km
Imported and registered in South Africa, roadworthy, recommissioning service

Documents & what's included

What physically comes with the car.

  • 01NATIS registration certificate, in bryanston_b12's name
  • 02Import file from the 2009 entry: bill of lading, SARS release, letter of authority, police clearance
  • 03German service file to 2009, invoices in South Africa from 2009 to 2025
  • 04Alpina specific parts invoices for the 2013 suspension overhaul
  • 05Printout from both engine management units, June 2025
  • 06Photograph of the console plaque with the production number obscured
  • 07Two keys and the original books
  • 08Roadworthy certificate issued within the last six months

Note from the seller

The seller's own words, published as written. The only copy on this page they control.

I imported this myself in 2009 from a dealer in Munich and it has been in Bryanston since. Sixteen years, about 47,000km, and every invoice is in the folder in date order. The Alpina specific parts are what makes it expensive to run and the 2013 suspension overhaul invoice will show you what I mean.

What I would want to know: both headlamp motors are slow and the left is worse, the air conditioning is poor at idle and has been regassed twice without a real fix, the driver's bolster seam is cracked, the front left wheel has been repaired after a kerb and the deco stripe on the right rear quarter has been relaid at one edge.

I did not publish the production number and I know how that reads. There are 97 of these. Publishing the number next to photographs of the plaque, the interior and the engine bay hands somebody most of what they need to build a convincing copy, and it has been done to Alpinas before. I will give the number to Alpina directly, or to any registered bidder who asks me for it, and they can put it to the factory themselves. What I will not do is print it on a public page.

bryanston_b12 · Private, third owner, 16 years

Comments & bids

6 comments · 3 offers

The crowd checks the report. Offers post inline, and the seller answers directly. Most recent first.

d_dog

Three bidders have already taken him up on it and the reserve is met, so the room has decided this one is credible. Worth noting that it only worked because he offered a route to the answer. Refusing and offering nothing is what the rest of these threads look like.

Bid: R 2,950,000motorsport_sa
Bid: R 2,820,000flatsix_wc
bryanston_b12Seller

To be clear about what is on offer: any registered bidder who asks me gets the number and can put it to Alpina in Buchloe themselves before the auction closes. Three people have done it so far. I am not asking anybody to take my word for anything except the reason it is not printed here.

Bid: R 2,600,000j.vanwyk
coetzee_classics

Both ECUs read and printed at the pre-sale service is the detail I would want on any M70 and almost nobody publishes it. Bank one and bank two behave differently and a printout from one of them tells you half a story.

philippa.n

It is still a decline and it should still cost him something. The whole argument for this site is that what the room can read is what the room can price. I can accept his reasoning and also think the number should be on the page.

motorsport_sa

On the withheld number: I am inclined to accept it. Cloning Alpinas is a real thing and a run of 97 is exactly the target. He has offered the number to registered bidders and to the factory. That is not the same as hiding it.

durban_deutsch

A manual B12 5.0 in this country is not a car I expected to see listed anywhere, ever. The fuel pumps, the cooling system and the clutch are all done, which is the list that empties a wallet on an E31 V12.

R 2.95m3d 4h