Mungo will have

to go south of the river!

Photograph of a London Black Cab
The Car

Tempted though we are to arrive in the glorious nations of Kazakhstan and Kyrgyzstan in a Trabant, Skoda or horse and cart to blend in, that may be impractical. We have opted for an ageing London Taxi with only 290k on the clock, so just run in really.

Having seen a black cab (called Henry) speed through the Sahara desert in 2006/07 we knew it made sense for this challenge.  Thank you Dom and Gaz for the idea.