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At its annual technology day in Ingolstadt yesterday, Audi revealed more information about its redesigned 3.0-liter V6 turbodiesel engine. The refreshed powerplant will be appearing in an array of products from the Volkswagen Group this year, including the new Touareg, Cayenne and the Porsche Q7 update.

Click for a high res gallery of the mileage marathon vehicles

Audi is going to put off the launch of three new SUVs into its arsenal until the end of the decade, primarily for marketing reasons. Really, it's only one new model – the compact Q5 – plus diesel and hybrid versions of its Q7 crossover.