South Africa’s Karoo offers open roads, big skies and plenty of 19th Century charm – but where exactly does it start and finish? 

Sudhir “Banzai” Matai retraces a route last seen from the back seat of his dad’s old Mercedes-Benz 230E.

“Africa, Africa, Africa, Africa, Africa, Africa – there is no other place for me,” is how Ari Vatanen replies when asked where his Favourite Detour lies.