The iconic black taxis in London are officially known as "Hackney Carriages," though they are almost universally referred to as "Black Cabs" by locals and tourists alike. The term "Hackney" comes from the French word haquenée, referring to a horse suitable for hire, dating back to the 17th century. These vehicles are unique because they are the only taxis in London allowed to be hailed on the street or picked up at a taxi rank. To become a driver, one must pass a legendary test known as "The Knowledge," which requires memorizing 25,000 streets and thousands of landmarks within a six-mile radius of Charing Cross—a process that typically takes three to four years of intense study. Modern black cabs, like the LEVC TX model, are now largely electric or hybrid to meet London’s strict emissions standards, but they retain the classic "high-roof" silhouette designed to allow a gentleman to ride comfortably while wearing a top hat. They are prized for their tight turning circles and the professional expertise of their drivers.