There are definitely countries on my travels where the honking gets insane, especially in certain areas. The last one that comes to mind is Sri Lanka, where I went in Jan.-Feb.
But some of that is logistics. The one main center area in the capital, Colombo, is not made for the kind of congestion that they have.
Another bad place was Sumatra, Indonesia on the main road... because you have twists and turns, and its vehicles announcing they're coming round the bend.