Audi's A6 is planning a hostile takeover of the executive car class, where the Jaguar XF leads and BMW's 5 Series and Mercedes' E-Class follow. Will the pecking order change? ALL WORK AND no play makes for very dull days, so how about an executive saloon that can brighten up even the greyest gridlocked morning? The new Audi A6 has the strong image and luxurious quality that Audi is famous for, and the 3.0-litre turbodiesel version has loads of muscle. If it's brawn you're after, the BMW 530d and the Mercedes E350 CDI provide even more. Better still, both are efficient, roomy, comfortable and classy.
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