I came to London by car for weekend. Total cost of £40. Ulez and congestion charge. Ok doing my bit for Londoners. Then I take a river taxi. Only to see a Uber boat ( well just see it ). So much black diesel smoke coming from the engines you could hardly see it. Black smoke drifted across to the jetty. Everyone had to turn away. Disgusting how they can get away with that and taking so much off local car drivers.