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By Jonathan Crouch

The Audi A6 remains a strong product in fifth generation form. Can it still make sense as an option in the full-Executive segment? Jonathan Crouch drives it.

Ten Second Reviewword count: 55

This MK5 model Audi A6 has been subtly updated and continues to try and appeal against newer rivals with a package that's based on efficiency, technology and value. It'll have its work cut out dislodging BMW and Mercedes but it's hard not to love the care and attention that's clearly been lavished on this car.

Backgroundword count: 135

'A first class journey with a business class ticket': that's how Audi describes the travelling experience you'll get in this fifth generation A6 model. Basically, what the Ingolstadt brand has done here is to democratise much of the technology of its larger A8 and enveloped it into smartly proportioned saloon and estate bodywork. There's certainly lots to admire here, with advanced mild hybrid drivetrains, sresponsive yet supple suspension options, sublime cabin comfort and a high-tech all-digital MMI touch response interface. But then then exceptional technology will be needed if his Audi is to be able to face down more recently introduced rivals of the quality of BMW's 5 Series and the Mercedes E-Class. A final round of subtle updates made to this MK5 C8 design has produced the car we're going to look at here.

Driving Experienceword count: 307

Audi offers this A6 with a wide range of engines but nearly all of them are 2.0-litres in size and feature mild hybrid tech. The base 40 TFSI is front-driven with 204PS, with the same engine also available in the pricier 45 TFSI quattro in 245PS form allied to 4WD. The mainstream alternative is the 40 TDI diesel, putting out 204PS and only offered in quattro form. The 2.0 TFSI petrol engine reappears again in a plug-in hybrid petrol model, the A6 50 TFSIe, with a combined output of 299PS and an electric driving range when fully charged of up to 43 miles. At the top of the range sit two bespoke sporting models. The S6 quattro uses Audi's 3.0-litre six cylinder TDI diesel engine in a 350PS state of tune. And the top RS 6 quattro (an Avant-only variant) has a 4.0-litre TFSI twin turbo V8 with 600PS, the result being 600PS, 0-62mph in 3.6 seconds, 124mph in 12 seconds and one queasy looking Labrador. As you'd expect in this segment, all A6 models are exclusively equipped with automatic transmission. That'll be a seven-speed S tronic gearbox, unless you've opted for the S6 or the RS 6 (in which case the transmission will be an 8-speed tiptronic set-up to handle the extra torque). In conjunction with the tiptronic transmission, the quattro configuration is based on the familiar self-locking centre differential format, while the S tronic transmission works with more efficient 'ultra' technology, which is capable of engaging the rear axle instantly whenever needed but decouples it during cruising to maximise efficiency. On all models, the driver can select various driving profiles via the Audi drive select system - with 'efficiency, 'comfort', 'dynamic' options, plus 'auto' if you can't make up your mind and 'individual' if you want to set your own throttle, steering and gearshift parameters.

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