JUST LOVE THE LUXURY OF TRAVELLING IN BLACK CABS ACROSS LONDON. AS A LONDONER, ALLOWED MYSELF THE LUXURY OF A TAXI HOME AFTER AN EXOTIC HOLIDAY. CATCH A CAB. The London Black Cabs are amongst the most reputable in the world. Stringent tests of City Knowledge, Character, and Background must be completed before the coveted badge is awarded; and only traditional London Taxis (the Black Cabs) are licensed by the Public Carriage Office to ply for hire in London.