Porsche
914/8

Why it matters

The 914/8 tested whether Porsche's racing flat-eight could power a road-going mid-engined car. Only two were built, one as Ferdinand Piëch's development car and one as Ferry Porsche's 60th-birthday present, and both remain with Porsche.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Each kind of rarity is rated separately and never combined.

Production

Every figure says what it counts.

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

In 1969 Ferdinand Piëch, then head of Porsche's racing department, pushed for a 914 powered by a 3.0-litre flat-eight derived from the 908 racer. The first car, chassis 914111, served as a test mule and was never registered for road use. A second car was built as a gift for Ferry Porsche's 60th birthday. The idea never reached production, and both cars are owned by Porsche and shown at its Stuttgart museum.

Technical specifications

Engine

Transmission & drivetrain

Chassis, body & dimensions

Performance

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

Identification guide

How to tell an original from a replica or later conversion.

Source details: pop-up headlights with dual lamps instead of single units, round door mirrors, and a fuel filler reached only by opening the front lid.

Sources

Each number links to the exact facts it supports.

1. 1
   Porsche Museum: 50 years of the 914 Level A Porsche Newsroom

   • Two one-off models with an eight-cylinder racing engine
   • three-litre boxer engine from the Porsche 908 racing car
   • Thanks to its injection system, the first vehicle produced around 300 PS
   • first vehicle produced around 300 PS
   • Both 914 S models had a top speed of around 250 km/h

   Accessed 2026-11-12
2. 2
   Porsche 914/8 – Stuttcars Level B

   • 2 cars built

   Accessed 2026-11-11
3. 3
   Unobtainium: Ferdinand Piech's Flat-Eight Porsche 914/8 Level C Bring a Trailer (Wayback capture)

   • Both are now part of Porsche's corporate collection
   • 3.0 liter, quad-cam, air-cooled, 350 HP flat-eight
   • quad-cam, air-cooled, 350 HP flat-eight ... magnesium alloy crankcase

   Accessed 2026-11-13
4. 4
   Porsche 914/8 Level B Nicolaos Dellis · Stuttcars · 2021-07-27

   • mid-engined, flat-8 racing engine derived from the 908
   • 3.0 liters

   Accessed 2026-11-12