10 Interesting facts about Mercedes-Benz C111

1. A total number of 13 Mercedes-Benz C111 were produced in which 11 were registered for the road and had a number plate on them.

2. Toy manufacturers were producing this car in all scales, hoping that Mercedes-Benz will let C111 go into production. They also did a Police version.


3. The front axle of C111 was taken and put into production on Mercedes-Benz S class W116 model and the multi-link rear axle was put into production in 1982 on Mercedes-Benz C Class, W201.

1972-1980-Mercedes-Benz-S-Class-116-Series-21 Mercedes_Benz-C_Class_W201_mp35_pic_61214

4. The C111 with four-rotor engine could not be beat in terms of performance and handling at the time . With an acceleration of 4.8 seconds from 0-100 km/h and the magic speed of 300 km/h, Mercedes- Benz presented without no doubt a high-performance sport car, the comparable cars of Ferrari ( Daytona ) and Lamborghini ( Miura ) were usually a little heavier and did not reach the same speed because of unfavorable air resistance. Only the 7 -liter model (400 hp SAE ) of Iso Rivolta in 1970 wanted to be at the same height – but only after not quite reliable factory specification . Also at that time the average output of normal cars was somewhere around 52HP.

C111 Teststrecke Papenburg mercedes-benz_c111-ii_d_concept_10

5. In one of the C111 engineers installed a post-combustion system in order to improve the rather poor exhaust emissions in rotary engines , so that the proportion of unburned hydrocarbons should be reduced. As a side effect, when the engine revs, little blue flames at the exhaust appeared . Unfortunately this was never recorded in a photo , the color contrast to the white autumn metallic paint of the car making it impossible to capture.

6. C111 also came with V8, M117 engine type. Exact data about it are hardly available, it should have been a minimum of two pieces : one in the first series with 250 hp , another in the second series , which had a single throttle system and 330 hp. Both are far more reliable than the Wankel engines. The V8 vehicles recognized by insiders had slightly raised rear hoods.

7. In the second series of C111, there was a model with automatic transmission.

8. The C111 design study was originally baptized , the C101 project. However, the “0 (zero)” in the middle had to disappear , since this number combination has long been protected by Peugeot as a brand. So they replaced the “0” at the IAA by a “1 “. C101 suffered the same fate as Porsche 901 at that time. Mercedes-Benz became legendary with C111 while Porsche became legendary with 911.

9. In 1969, the first of the C111 was a “design studie” made by Bruno Sacco. It is now exposed at Mercedes-Benz Museum in Munich and it looks like this:


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Here is a nice video with the car:

10. In 1965 Paul Bracq designed a high-performance car with the title 700SL. Later on, a lot of those features, like butterfly doors and wedge-shaped tail, appeared on Porsche 906.

For the last part I have an article which analyse the characteristics of  the 1969 Mercedes C111 and 1972 Turbo BMW.  Apparently both have something to do with Paul Bracq designs. I can’t seem to find any other info about this but I will upload the pictures anyway. The article is in German and I don’t know the magazine.

Test-BMWTurboX1     vergle10