The innovative WAS 100-E 100 % electric combines a proven vehicle concept with a sustainable drive system, based on a Mercedes-Benz eVito. The well-known advantages of the Vito combined with a powerful electric drive provide a further platform on which can be built alternative drive technologies in the rescue service. The optimal use of space in the WAS cabinet system allows for easily accessible equipment storage. Furthermore, the focus during the conversion was placed on crew safety without compromising on the weight reserve for the payload to be lost. Overall, this vehicle offers an above-average payload of 610 kg. With a considered weight of the crew of 3 x 75 kg, it benefits from a residual capacity of 385 kg. In addition to the weight reserve required by DIN EN 75079, this vehicle also meets the other requirements of the currentlyapplicable standard for emergency ambulances. Various cabinet modules are available for the individual design of the vehicle concept. The installed medical technology is supplied with power by plug connections integrated into the cabinet system.