Shockwaves have been felt around the world after the arrest of Carlos Ghosn, boss of the world's biggest auto-alliance. It brings together Renault, Nissan, Mitsubishi. Shares in France's number one car maker are down by 8.5% as the French government scrambles ahead of the imminent ouster of the Brazilian boss over his alleged failure to report tax to Japanese authorities. Peter Campbell, motor industry correspondent from the Financial Times, discusses the effect of this news.

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