Vehicle Dynamics - Evaluation and Development
Subjective and Objective Testing

Testing winter tires in Finland Sign-off test of the Nissan 350Z
Dirk helped to develop the Nissan GT-R On the track and on the road, Dirk has developed extensive experience covering more than a million kilometers of prototype assessment across Europe.
From Finland to Spain, from Inverness to Budapest he is familiar with most of Europe's road network, but only a handful of drivers have achieved Dirk's intimate knowledge of the legendary Nürburgring-Nordschleife. With close to 20,000 laps (more than 400,000km) under his belt, he is able to extract a maximum of information from your car/tires in a relatively short space of time.
Dirk's continuing close collaboration with numerous automotive designers allows him to describe product characteristics with a high level of expertise and detail which he can communicate in four different languages (fluent Dutch, French, English and conversational German).
Wet-handling test in Papenburg
Trying out the Porsche Carrera GT Having a go in a McLaren F1


Durability Testing
Top Line Development has a number of expert drivers available for durability tests on the Nürburgring Nordschleife. They have been severely selected, not only for their outstanding driving technique, but also for their human qualities: the will to offer an impeccable service to the client. They all have completed thousands of laps on the Nordschleife and have considerable technical knowledge. They are ready to go out in any type of car and adapt to the requested driving style.

+100.000 laps (+2 million km) of experience on the Nordschleife available to you!
+100.000 laps (+2 million km) of experience on the Nordschleife available to you!

Formula 1
Dirk thoroughly enjoyed his Formula 1 drive Dirk thoroughly enjoyed his Formula 1 drive
Dirk thoroughly enjoyed his F1 drive!
GTR at Estoril Lots of driving on the unrestricted Autobahn in Germany
Taking the new 911 RS onto the Nordschleife Suspension test in the Mc Laren Mercedes SLR