A classic under suspicion:

The starting point for a complex analysis

At the beginning of the 2000s, our engineering firm was commissioned to investigate a Mercedes-Benz SSK that allegedly dated back to the pre-war period. From the very first contact, it was clear that there were far-reaching questions to be answered. It was about more than just determining the market value - it was about originality, authenticity and technical truth.

In order to check the authenticity, we opted for a combination of scientific procedures, in-depth historical research and complete vehicle dismantling. The entire process was carried out in close collaboration with the Technical University of Cologne (IWP) and the restoration company Beier & Beier.

Technical and scientific pioneering work - then as now under laboratory conditions

Even back then, we used methods that were considered unusual in the classic car sector at the time:

• Optical emission spectrometry (OES) for material analysis, at that time only usable as a stationary system in the laboratory at TH Köln

• Ultrasonic measurements to analyse the wall thickness of frame components and load-bearing elements

• Endoscopy and 2D X-ray for structural examination and detection of hidden interventions

• Application of the etching method (including Fry and Adler) to analyse embossing marks and potential welded joints

The vehicle was dismantled into its individual parts and the frame was analysed separately. The material samples were analysed under laboratory conditions in order to draw conclusions about the alloy, manufacturing process and therefore the age. This revealed that not all components were from the same period - some materials had properties that were clearly attributable to post-war steel.

The results: Precision that dispels doubts

The combination of material science analysis, detailed visual inspection and structural diagnostics enabled us to draw a clear picture: This was not an entirely original vehicle from the 1920s. Rather, individual assemblies and structural elements had been added or modified at a later date. The embossed labelling showed anomalies that indicated subsequent modifications.

These findings had far-reaching consequences for the owner at the time - and showed the collecting world once again that anyone who forgoes technological depth is risking investments in the six- or seven-figure range.

Science as a tool for trust

The SSK case was more than just an investigation. It was further proof that there must be a different way to assess classic cars: independent, fact-based and comprehensible for all parties. Today, this approach is the basis of our work - in classic car appraisals as well as in the development of transparent certification processes under the umbrella of the Kukuk Group.

What began as an isolated case in 1986 was already standard for us at the time of the SSK case and is now the industry standard. And what used to be limited to individual vehicles is now used in collections, museums, auctions and investment decisions worldwide.

Conclusion: A cold case that made history

The Mercedes-Benz SSK was no ordinary assignment - it was the starting signal for a methodology that still sets standards today. It showed that authenticity must be proven, not felt. And that technological precision is the only way to give the classic car world long-term confidence and security.

If you want to authenticate vehicles today, you have to go deeper.

This is exactly what we do - day after day, worldwide, based on facts.

Would you like advice?

Do you own a classic vehicle with an unclear history?
Or would you like to be sure of the originality and condition?

We can help you. Scientifically. Objectively. Transparent.