Back in 1996, I wrote "The Type B18 was a limited edition of 1200 enlarged B14Gs intended for export to the Far East. They were all fitted with right hand drive and had an enlarged track of 1.42 m.

The picture above is of a left-hand drive B14G since, to the best of my knowledge, there are no photographs of this model."

And then, in 2016, Wouter Jansen, the editor of CITROEXPERT kindly sent me this very rare picture of a B18.
The car pictured is a military version.  Approximately 100 were sold to the French army and all were fitted with right hand drive steering.