01 · Overview
Buchloe beats Garching
While BMW designed the M5 as a high-revving naturally aspirated engine, Alpina took a different path: the B10 Bi-Turbo uses two Garrett T25 turbochargers to extract 360 PS and 520 Nm from the 3.4-litre M30 — at its introduction in 1989, the fastest production sedan in the world, with a top speed of over 290 km/h.
507 units were built until 1994, each with a Getrag five-speed gearbox and Alpina suspension. At 146,800 DM, the price was almost double that of the M5 — yet the Bi-Turbo still became the best-selling individual model in Alpina’s history up to that point. As an independent manufacturer, Alpina nonetheless belongs in the E34 chapter: without the 5 Series, there would be no B10.
02 · History
Einordnung
- 1989 Introduction — the fastest production sedan in the world, with performance to match a Ferrari.
- 1994 Ended after 507 units; successors based on the E39 continue the B10 name.
03 · In Detail
In Detail
Sedan
Identifying features: Alpina decal set, 17-inch Alpina wheels, front spoiler with oil cooler openings, numbered plaque in the interior.
04 · Engines
Alpina Bi-Turbo (M30-based) verified
Two small Garrett T25 turbochargers for spontaneous response, Mahle pistons, reinforced ancillaries — fully built in Buchloe.
Technische Daten anzeigen
| Hubraum | 3.430 cm³ |
| Leistung | 360 PS (265 kW) at 6,000/min |
| Drehmoment | 520 Nm at 4,000/min |
| Getriebe | Getrag-5-Gang |
Wikipedia EN, Alpina B10 Bi-Turbo
05 · Buying guide
Buying Advice in Brief
Only buy with Alpina history (Buchloe keeps an archive). Turbocharger tightness, cooling, and the originality of the Alpina parts are the key value factors.
06 · The competition
The competition
BMW M5 (E34)
The in-house rival: high-revving naturally aspirated engine versus twin-turbo — two philosophies, one body.
07 · Sources