Makes › Maserati › 8CM · Factory competition · 1933–1935 Ultra Rare
Maserati
8CM
Single-seat GP car (Nuvolari, Belgian GP 1933)
Still being researched: identification guide, full specifications. Everything shown is checked against the cited sources. Know more? Send us a source.
Photo: In Vitrio · CC BY-SA 4.0
Contents
01Overview
At a glance
- Built
- 19 Built
- Years
- 1933–1935
- Engine
- Front-mounted eight-cylinder, twin overhead camshafts
- Power
- Not yet verified
- Top speed
- Not yet verified
- Body
- Not yet verified
- Designer
- Alfieri Maserati (engine design); Tazio Nuvolari (chassis stiffening of the first cars)
- In this archive
- Not yet verified
- Surviving
- Not yet verified
Sources and any conflicting figures are in the sections below.
Why it matters
The 8CM was Maserati's Grand Prix car of 1933 to 1935, built around the eight-cylinder twin-cam engine that Alfieri Maserati finished before his death in 1932. It became a race winner only after Tazio Nuvolari stiffened its flexible chassis, and its availability made it a popular privateer car.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
Photos
Exterior, interior and detail photos with their licences.
Maserati 8CM (Wikimedia Commons: Maserati 8CM)
Photo: In Vitrio · CC BY-SA 4.0
Maserati 8CM (Wikimedia Commons: Maserati 8CM)
Photo: Unknown photographer · Public domain
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02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Total model productioncars built | 191 | 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
Alfieri Maserati died in the spring of 1932 after completing the designs of two new twin-cam engines, a 1.5-litre four and an eight-cylinder derivative for Grand Prix cars. Fitted in a conventional steel ladder frame, the eight, named 8CM, flexed under power and was poorly received.
Nuvolari bought the first car, returned by Raymond Sommer, added cross-members at the Minerva factory before the 1933 Belgian Grand Prix and won the race. Maserati copied the changes for 1934, when the cars had to reach the new 750 kg minimum weight. A further stripped-down chassis was built in 1935 for a speed-record run on the Autostrada.
Variants
How each version differs from the standard 8CM.
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | Not yet verified |
|---|---|
| Engine code | Not yet verified |
| Layout | Front-mounted eight-cylinder, twin overhead camshafts2 Independently researched |
| Cylinders | 83 Independently researched |
| Displacement | Not yet verified |
| Bore | Not yet verified |
| Stroke | Not yet verified |
| Compression ratio | Not yet verified |
| Fuel system | Not yet verified |
| Power | Not yet verified |
| Power at | Not yet verified |
| Torque | Not yet verified |
Transmission & drivetrain
| Gearbox | Not yet verified |
|---|---|
| Gears | Not yet verified |
| Driven wheels | Not yet verified |
Chassis, body & dimensions
| Chassis | Steel ladder frame (cross-members added after Nuvolari's 1933 modification)2 Independently researched |
|---|---|
| Front suspension | Solid axle with semi-elliptic leaf springs2 Independently researched |
| Rear suspension | Solid axle with semi-elliptic leaf springs2 Independently researched |
| Brakes | Large hydraulically actuated drum brakes2 Independently researched |
| 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 | Not yet verified |
|---|---|
| 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.
Not yet documented. Have a source? Contribute it.
Sources
Each number links to the exact facts it supports.
-
1
1933 - 1935 Maserati 8CM Specifications - Ultimatecarpage.com Level C
- 19 cars built
-
2
Maserati 8CM Level C Ultimatecarpage.com (Wouter Melissen)
- eight cylinder engine; two twin-cam units
- very conventional steel ladder frame; added cross-members
- suspended all-round by solid axles and semi-elliptic leaf springs
- large hydraulically actuated drum brakes
- 3
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