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Audi A6 2005 review

We may look at highly paid executives through envious eyes, but chances are most are as keen on keeping a close watch on costs.

Economy travel is the aim for Audi's entry-level A6. The 2.0 TDI is clean and efficient, returning class-leading fuel figures and impressively low emissions. However, the engine isn't as smooth and refined as it should be, which detracts from the overall driving experience.

We may look at highly paid executives through envious eyes, but chances are most are as keen on keeping a close watch on costs as the rest of us. Otherwise, why would Audi bother with its new entry-level diesel A6?

The range's cheapest model, powered by the same engine as our Octavia, the 2.0 TDI SE costs £24,020 and slots in below the 222bhp 3.0-litre oil-burner - which starts at £31,930.

The common-rail TDI gives 44.8mpg on the combined cycle. Add a 70-litre fuel tank, and the 1,540kg saloon can travel up to 690 miles between fill-ups. And if you add CO2 emissions of a mere 169g/km, economy-minded executives should come flocking.

Next to it, Mercedes' similarly powerful but more expensive E220 CDI looks costly, so what about the Volvo S80 D5? At £23,303 it's tempting, and the 172g/km emissions are low. But the Swede still doesn't meet Euro IV legislation, incurring a three per cent tax penalty. So far so good for the Audi, but unfortunately it can't maintain its momentum. The chief problem is engine noise: the 2.0 TDI is no quieter here than in the VW Golf or Skoda Octavia - and that is a surprise. It's intrusive when accelerating, and although it settles at steady speeds, it's neither as refined nor relaxing as it should be.

Straight-line performance is nothing special either, with 0-60mph taking 10.3 seconds. But the meaty mid-range torque means you're rarely left trailing around town. Teaming this motor with a manual box doesn't show it in its best light, though - the shift is slack and highlights the fact that executive saloons are better with auto boxes. But here that costs an extra £1,400, and hits economy and performance.

In other regards, the Audi is impressive. Cabin quality and design are immaculate, and the A6 is an eye-catching shape. The big 18-inch alloys look smart, although they spoil the ride quality. These are optional, and combined with the other extras fitted, pushed our test car's price to £31,180. And there's nothing basic about that!

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