To promote Nissan’s first 100% electric car, Hotcow is teaming up with digital agency AKQA to bring lucky Londoners the World’s Cheapest Taxi Rank powered by Nissan Leaf. To promote Nissan’s first 100% electric car, Hotcow is teaming up with digital agency AKQA to bring lucky Londoners the World’s Cheapest Taxi Rank powered by Nissan Leaf.