LONDON - Volkswagen’s boss in Britain said the company’s engineers were working to find a way to fix the brand’s British models that contain software that can rig diesel emissions. About 1.2 million vehicles in Britain have been affected by the scandal. Some engines require changes to both hardware and software whilst others only need the software changed, Managing Director Paul Willis told British lawmakers on Thursday. “I don’t know fully what the technical fix is, that’s what we are working with the engineers (on),” Willis said.