Archive for 'MFI-13'

1967 SAAB Sonett II – Saab USA Heritage Collection

Posted on 19. Mar, 2007 by .



The beginning of this week starts with the Saab Automobile USA Heritage Collection’s 1967 SAAB Sonett II. This model is a 3 cyl 70HP two-stroke motor similiar to the model mentioned previously.

In 1967 there were 229 production models built at ASJ factory in Arlöv, Sweden

Stock Factory Setup:

Longitudinally mounted 3-cylinder two-stroke engine.
Cylinder bore 70mm, stroke 72.9 mm, cylinder volume 841cc.
Compression ratio 9.0:1
Rating 60hp (44 kW) at 5200 rpm.
Torque 9.6 kgm (94 Nm) at 4000 rpm
Three Horizontal carburettors, Solex 40 DHW
Electric fuel Pump

Here is the writeup on the 1967 Saab Sonett II Two-Stroke from Saab Automobile USA.


Beginning in 1967, the Sonett II represented Saab’s second – and much more ambitious – foray into the world of two-seat sports cars. Aimed primarily at the North American market, the sporting intentions of this agile coupe were obvious. The race-winning Model 96 Monte Carlo two-stroke engine, fitted with three carburetors, was standard equipment.

The fiberglass body was attached to a sheet steel frame featuring an integrated roll bar. An unusual, one-piece front end hinged completely out of the way for easy access to the engine, transmission and front suspension components.


Capable of 0-60 mph (100 km/h) acceleration times of 12.5 seconds and a top speed approaching 100 mph (160 km/h), only 258 Sonett IIs with the “Monte Carlo” 60-horsepower two-stroke engine were built during the two years of production. One of these, restored by the Saab Club of New England and finished in silver metallic, has been a longtime member of the Saab Automobile USA Heritage Collection.

A subsequent, more powerful, V-4, four-stroke version of the Sonett II, distinguished by a bulge on the hood to accommodate the taller engine, brought more horsepower, more speed and a total of 1,868 cars built over the next three years.

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1965 SAAB “MFI-13” Prototype – Saab Museum, Sweden

Posted on 18. Mar, 2007 by .



Photo Credit: Saab Automobile

The SAAB MFI-13 Prototype project was the successor of two competing projects that was designed as one of the concepts that would be used for the next production model which was the Sonett II. This prototype was built in parallel to the competition at the MFI factory in Malmö, Sweden. MFI stands for Malmö Flygindustri (MFI), the factory where the vehicle was built, hence the designation MFI. The number 13 was a number that was chosen because it was to be least chosen as an aircraft number, therefore it was a safe numerical designation for an automobile prototype. In 1968, SAAB purchased Malmö Flygindustri AB (MFI).

The MFI-13 was designed by Björn Karlström and Björn Andreasson.

The other vehicle that was being designed in parallel to this model was the “Catherina” (saabhistory website reference for catherina).

Here is an interesting bit from

The MFI-13 is currently located at the Saab Museum in Sweden.

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Production Concept