A Mellowcab is a fully electric minicab designed to provide an efficient on-demand taxi service in urban areas.Given that Mellowcabs emit zero carbon emissions, they are eco-friendly and much more efficient than traditional cabs. They also help to reduce traffic congestion in city centres and tie in to existing public transport systems.Since taxis are estimated to be the most viewed channel for Out Of Home advertising, Mellowcabs represent an exciting, innovative way for advertisers to showcase brands.