Finally, after the usual long wait, it's all change on the No.10 bus.
Gordon Brown, the previous driver, has been forced to retire prematurely following several careless accidents. Meanwhile, David Cameron has replaced him at the wheel and is now in the driver's seat of a slick, shiny, new hybrid vehicle comprised from the parts of two different manufacturers.
What we all want to know is: are the parts going to last the full length of the warranty? Are fares going to rise to a level that will cause immense hardship to the passengers? Who will become Cameron's conductor and do the owners of the bus have a clear route mapped out for the whole of the journey?
Hopefully, the ride will be smooth and uneventful, but there is always the danger the driver will be caught out by that seemingly obvious low bridge!