An intuitive, flawless and responsive usability is essential for successful implementation of infotainment systems. The automotive sector has specific demands for learnability and compatibility with the driving task. Our driving simulators and our usability lab provide the ideal setting for developing a user interface optimally coordinated with driver behavior. Rapid prototyping lets systems be tested "in action" in a real or realistic environment. Realistic user studies as part of driving simulation car clinics provides valuable input for fundamental design decisions that help control costs in the development process. We will be glad to work with you in finding the best solution for your project!