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Opel says diesel engines have contributed significantly to the success story of the Opel Insignia. More than 57 per cent of all European orders for the Opel flagship model are for the diesel variant.

Opel says diesel engines have contributed significantly to the success story of the Opel Insignia. More than 57 per cent of all European orders for the Opel flagship model are for the diesel variant.

Audi is pioneering the introduction of the world’s cleanest diesel technology in Q7 SUV models that help to rid the air of Nitrogen Oxide (NOx) emissions, regarded by many as being dramatically more harmful to humans than Carbon Dioxide (CO2).

Audi showcased the world’s cleanest diesel engine technology at the Frankfurt International Motor Show