1992 Alpina B12 5.0 Coupe (#54/97)

Buchloe’s relationship to BMW is easy to flatten into “tuner.” That flattening is how ordinary E31s sneak into rare-car conversations. The B12 5.0 coupe refuses the flatten: it is an Alpina product on the 8 Series architecture, built in a short run from mid-1990 to mid-1994, and counted at 97 cars before the hotter B12 5.7 (57 units) took the flag. Hemmings’ model feature puts the point bluntly — not one was earmarked for the U.S. market when new. Scarcity here is not a rare paint code on a volume coupe. It is the entire catalog.

What Alpina changed matters because it is mechanical, not merchandising. Period and reference coverage describe an M70 5.0 V12 with higher-compression Mahle pistons, larger intake valves, revised heads and management, a unique exhaust path, and a raised redline — factory claims around 350 hp and 470 N·m, with a ZF four-speed automatic recalibrated to use the higher engine speed. Chassis work (springs, Bilstein damping, Alpina wheels/valance language) and the blue-dial instruments complete the product identity. There was no manual B12 5.0 coupe; the auto is not a compromise anecdote, it is the series.

This example is publicly identified as #54 of 97, VIN WAPBC50C02D110054 — the WAP manufacturer code is the quickest way a buyer separates Alpina truth from a dressed 850i. The ownership romance is thinner than the Lazzarino or a works race bike: German delivery, later U.S. importation (2025 in venue materials), roughly 88,000 km showing. That is fine. Rare Machines scores production and documentation hard on this one; provenance gets an honest mid-single-digit because the chassis does not yet carry a public competition or museum novel. The bar still clears.

California buyers should treat emissions and title path as diligence, not as rarity theater: venue materials note the car has not been CARB-inspected. That is a registration problem for some zip codes, not a Hard Gate.

Provenance timeline (public)

• 1990–1994 — Alpina builds 97 B12 5.0 E31 coupés (succeeding run: 57× B12 5.7).
• This chassis (#54) — WAP VIN publicly listed; German-market delivery in public offering notes.
• 2025 — Imported to the United States (venue-stated).
• 2026-09 — Live on Bring a Trailer; scheduled end 10 Sep 2026 ~10:25am PT.