Very Cool - I had to goggle the RT and yep that was the bus I remember. I probably thanked the conductor, but "Thank you Driver" for many a safe journey.
I would always go upstairs and was a better choice than the tube if possible. And I am amazed, no power steering! Compared to the good old London taxi that could turn on a dime, you lucked out lol.
Not my pic so do not ask me who the randoms are lol