Politicians in southern California have agreed to a scheme to ban petrol and diesel vehicles within the next 20 years. William Woollard reports from Los Angeles on the implications of this drastic decision and on the more immediate threat to European luxury car manufacturers whose rich markets in the USA are being threatened by the Japanese. Back on this side of the Atlantic, Chris Goffey road tests new versions of Renault’s 19 and 21 and visits Peugeot’s new museum at Sochaux in France.