A rather unusual trolleybus has been navigating the streets of Zurich in recent months. With its large windscreen and covered wheels, it could easily be mistaken for a tram – but it’s not just the design that makes this bus so unique. For a start, it features a hybrid electric drive system that allows it to draw power from an on-board traction battery as well as overhead wires. But this bus is also “smart”, boasting specially designed software that automatically gathers information on the route. That means it always knows what to expect – whether that’s a downhill stretch or a dead wire up ahead.