Judge imposes $125m fine on Volkswagen over Dieselgate
VW effectively apologises for its dieselgate scandal.
Executive was arrested at his home in Ingolstadt.
Massive fine over diesel emissions scandal.
Dieselgate vehicles said to be using more fuel than they did before.
Volkswagen commits to spending $54 billion to reduce pollution.
The Dieselgate stink has left oil-burners on the nose.