In 2000 Peugeot became the first manufacturer to sell a car (the Peugeot 607) with a diesel engine fitted with a particulate filter.

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"When you look to the German car manufacturers now, they are fighting against each other with the biggest statement, with more horse power, and these days a diesel engine car is as powerful as a petrol car, " Saab Europe's Claude Makowski told BBC News Online.

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