Audi Introduces a New Dimension of Efficiency to the Class-Leading A6 Sedan Audi Australia has introduced two brand new, ultra-efficient front-wheel-drive, 4-cylinder variants of its A6 business class sedan, once again proving that efficiency comes standard in any car bearing the four rings. Joining the three existing V6-engined A6 variants, both the new petrol 2.0 [...]

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