E1's engineers embraced the remit, and over several years, took the concept from initial design right through to final production. The E1 EV0' is not a prototype ' it is a series production, Operational Service ready model, easily integrated into existing appliance fleets. Emergency One did not want to produce a Hybrid vehicle, a concept truck, or one with limited range and operational performance, but rather aimed to produce a next-generation solution. One that 'builds on the current features of today's diesel-fuelled fire appliances, whilst also including many new and innovative features, designed to improve firefighter (and public) safety. In other words, a low emission fire and rescue vehicle that exceeds the current appliance specification and looks the part!