![A pair of Arma autonomous shuttle buses, manufactured by Navya Technologies SAS, travel in La Defense business district of Paris, France, on Wednesday, July 19, 2017. Paris, Madrid, Athens and Mexico City have all said they will ban diesel vehicles from their roads by 2025. Photographer: Christophe Morin/Bloomberg](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/4EWBPVTJGJIALDF4W3WNCRIBBE.jpg?smart=true&auth=297d5f78f845e4ce4b228a7bf3f27db3bbcda678f7f27d58797873f03391f605&width=400&height=225)
A pair of Arma autonomous shuttle buses, manufactured by Navya Technologies in La Defense business district of Paris. Christophe Morin / Bloomberg
A pair of Arma autonomous shuttle buses, manufactured by Navya Technologies in La Defense business district of Paris. Christophe Morin / Bloomberg
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