Car giant Citroen talks up plans to take on China

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Citroen CEO Thierry Koskas tells the BBC about its plans to compete with Chinese manufacturers, and why it's "confident" it can beat them on home turf. Elsewhere, Roger Hearing looks at whether Nvidia - now the world's most valuable company - is in a price bubble. And he hears from South Africa's new coalition about plans to boost the economy's economy.