Audio slideshow: 'Pimp my matatu'  Kenya's minibus taxis, known
as matatus - the country's main form of public transport - are
renowned for their dangerous driving, blaring out music at
deafening volumes and their elaborate, graffiti-style artwork,
often based on leading footballers, singers or film stars.
Owners and designers compete to have the loudest sound system
and the most eye-catching design, saying this attracts customers
but the government is trying to clamp down on them and has
banned loud music and ordered matatus to have simple colour
schemes.  Graffiti artist Hassan "Rasta" Mohamed explains why
Kenyans started to do up - or "pimp" their buses - and says he
will resist the attempts to "destroy the matatu culture".
Photography and audio by the BBC's Joseph Winter and Oscar
Bunga. Production by Emma Lynch.  More Africa stories