Makes › Alpina › B6 3.5 S (E30) · Specialist manufacturer · 1989 Extremely Rare
Alpina
B6 3.5 S (E30)
(Alpina): E30 M3-based car with 3.5 straight-six
Still being researched: full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.
Photo: Spanish Coches · CC BY 2.0
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Contents
01Overview
At a glance
- Built
- 62 Built
- Years
- 1989
- Engine
- OHC straight-six, Bosch Motronic II injection · 3,430 cc / 3.4 LFactory: 3,430 cc
- Power
- 189 kW / 258 PSFactory: 254 hp · converted
- Top speed
- 251 km/hFactory: 156 mph · converted
- Body
- Not yet verified
- Designer
- Not yet verified
- In this archive
- Not yet verified
- Surviving
- Not yet verified
Sources and any conflicting figures are in the sections below.
Why it matters
The B6 3.5 S was effectively a six-cylinder E30 M3, built by Alpina years before BMW's own six-cylinder M3. Only 62 were made by converting new M3s by hand at Buchloe.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Total model productioncars built | 621 | Factory production | Independently researched |
Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.
History
Shown to journalists in 1988 and launched in 1989, the B6 3.5 S was created by buying standard E30 M3s and replacing the four-cylinder with a 3.4-litre straight-six based on BMW's M30, reworked with Alpina camshaft, valves, porting and pistons. The M3's Getrag dogleg five-speed was kept, with a taller final drive. Alpina was absorbed into BMW about a year after the launch.
Variants
How each version differs from the standard B6 3.5 S (E30).
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | Not yet verified |
|---|---|
| Engine code | Not yet verified |
| Layout | OHC straight-six, Bosch Motronic II injection2 Independently researched |
| Displacement | 3,430 cc / 3.4 LFactory: 3,430 cc2 Independently researched |
| Bore | Not yet verified |
| Stroke | Not yet verified |
| Compression ratio | Not yet verified |
| Fuel system | Not yet verified |
| Power | 189 kW / 258 PSFactory: 254 hp · converted2 Independently researchedSource states bhp (brake horsepower, mechanical). |
| Power at | 5,900 rpm2 Independently researched |
| Torque | 321 NmFactory: 237 lb-ft · converted2 Independently researched |
Transmission & drivetrain
| Gearbox | Getrag five-speed manual (dogleg), rear-wheel drive2 Independently researched |
|---|---|
| Gears | Not yet verified |
| Driven wheels | Not yet verified |
Chassis, body & dimensions
| Chassis | Not yet verified |
|---|---|
| Front suspension | Not yet verified |
| Rear suspension | Not yet verified |
| Brakes | Not yet verified |
| Steering | Not yet verified |
| Body construction | Not yet verified |
| Wheelbase | Not yet verified |
| Length | Not yet verified |
| Width | Not yet verified |
| Height | Not yet verified |
| Front track | Not yet verified |
| Rear track | Not yet verified |
| Kerb weight | Not yet verified |
| Dry weight | Not yet verified |
Performance
| Maximum speed | 251 km/hFactory: 156 mph · converted2 Independently researched |
|---|---|
| 0–100 km/h | Not yet verified |
| Fuel tank | Not yet verified |
“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.
04Colours & options
Factory colours & interiors
Original paint and trim, with the number of cars in each where a source gives it.
Not yet documented. Have a source? Contribute it.
Factory options & codes
Codes are shown exactly as written by the manufacturer.
Not yet documented. Have a source? Contribute it.
05Individual cars
Chassis register
Every documented car, with its colours, history and where it is now. Open a row for the full record. Known chassis are not automatically authenticated originals.
Not yet documented. Have a source? Contribute it.
Competition history
Every race result of the individual cars, in date order. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
Auction & sale history
Documented public sales of the individual cars. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
See one in person
Museums where an example of this car can be seen.
No example is documented on public display yet. Have a source? Contribute it.
06Reference
Identification guide
How to tell an original from a replica or later conversion.
A genuine car is an E30 M3 shell with the Alpina 3,430 cc six-cylinder, a 2.79:1 rear axle ratio (standard M3: 3.25:1) with 25% limited-slip differential, 225/45 tyres, Bilstein gas dampers and stiffer front springs from an air-conditioned M3.
Sources
Each number links to the exact facts it supports.
- 1
-
2
Alpina B6 S: driving the straight-six BMW E30 M3 Level B Octane
- 3430cc OHC straight-six, Bosch Motronic II
- 3430cc
- 254bhp at 5900rpm
- 237lb ft at 4000rpm
- Getrag-built five-speed dogleg
- 156mph
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