Siegfried Spiess Motorenbau GmbH
Dieselstrasse 11    D - 71254 Ditzingen
Phone +49 ( 71 56 ) 95 61 - 0
Fax +49 ( 71 56 ) 95 61 - 11

Experience, know-how and visions

No matter if Formula 1 ace Michael Schumacher, European Touring Car Champion Manuel Reuter, DTM Champion Gary Paffett or Dakar winner Carlos Sainz/Lucas Cruz: successful Spiess drivers are competing in the most different motor-racing categories.

It doesn’t come by accident that the best of the best rely on the special products supplied by S. Spiess Motorenbau GmbH. For more than 40 years, now, Spiess have been developing, designing and producing power units that have proven their competitiveness on racetracks all over the world. The service range increased consistently and for a long time, it has been providing products for other industries too. The particularly close collaboration of the different departments represents the key factor for the successful Spiess concept.

The principle of a one-stop product is unrivalled and represents a major advantage

  • S. Spiess Motorenbau GmbH stands for focused competence. All the projects are fully and exclusively attended to in-house, in Ditzingen.
  • Confidentiality enjoys top priority and requires: development and design, production and testing, assembly, service and quality control are solely and exclusively executed by Spiess Motorenbau.
  • Short communication channels and a permanent data and idea exchange between the different departments allow for reacting to any possible challenge quickly, flexibly and without any delay.
  • All the employees work hand in hand – the integration of their performances increases the (time) efficiency. The permanent internal communication and the fact that all the departments use the same systems eliminate any data loss. Spiess are not only the motor-racing experts but also multifaceted service providers featuring a broad range of design and production possibilities.

Many years of competence in:

  • component development
  • module development
  • applications development
  • motor development
  • Development of high-performance components
  • FEM simulation

Exclusive sale of engines

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Construction Design of completely new engines or the enhancement of existing power units –inventive spirit, courage, extensive team work and our huge wealth of represent the basis for innovative results.
Manufacturing Precision components or the refinement of existing components, single copy or small-batch series, solid material or cast material – a diversified service range thanks to an ambitious mix of know-how and new developments.
Quality management Out there on the racetrack, the smallest mistake can be crucial. Therefore, special emphasis is placed to a gapless and absolutely precise quality control. No part will be installed without having been subjected to an extremely strict examination.
Engine manufacturing The engines are individual custom products and are assembled in the heart of the company by a highly qualified team. Here, quality instead of quantity represents the yardstick.
Test bench Here, the process represented by development and design, production and manufacturing comes full circle. On the test rigs, the components or the entire project have to definitively demonstrate if they meet the highest standards.