Visio.M Research Prototype (image) Technische Universitaet Muenchen Caption First a whirring sound, then the crunch of tires on the road. Things are pretty quiet when the Visio.M engineers take their prototype e-car for a spin. Credit Credit: A. Heddergott / S. Rauchbart / TUM Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.