A generous interior and various engine versions of the Mercedes-Benz Vito offer the best conditions for a conversion to a first response vehicle. A perfect use of space assures both an easily accessible accommodation of the equipment and a maximal security for the crew. The interior of the vehicle has a working desk, an individual seat type M1 with seat recognition, a communication system and storage compartments – thus the requirements for the different interventions are perfectly satisfied. Even organisational work is treated in this working area. In the rear part of the vehicle, the modular cabinet system, designed by WAS, offers maximal storage space. Based on the experience of hundreds of first response vehicles built by WAS, this concept was developed in cooperation with our customers and their requirements in order to offer maximum ergonomics and comfort. The conversion makes it possible to access the necessary equipment both from inside and outside through the sliding side door and the tailgate. Special attention is given to the different installation methods of the medical devices. The equipment can be easily accommodated in the modular rear cabinet system. Even if the medical equipment is changed, it can easily be positioned in the modular cabinet system. Different cabinet modules available offer an individual design and a flexible use. All medical devices are supplied by means of integrated plug-in connections. This first response vehicle meets the high requirements of standard DIN EN 75079.