Costs & verdict
Everyday costs, plus how reliable and safe it is
Costs, insurance groups, MPG and CO2
The Audi A6 isn't the cheapest car in its class, but it's priced in line with the BMW 5 Series and Mercedes E-Class, and its residuals are similarly strong. As a result, contract hire and PCP finance rates are also competitive, and although it's comparatively pricey to insure the A6, servicing it is relatively inexpensive.
The 55 TFSIe plug-in hybrid has a slightly longer electric range than its 5 Series equivalent, the 530e, and matches Mercedes' E300e, while low CO2 emissions make it an appealing company car choice. Just bear in mind that as with all plug-in hybrids, the fuel economy you get will vary dramatically depending on how frequently you top up the batteries.
When we tested the 40 TDI diesel we managed an average of 46.8mpg, which is more than the rival 520d or E220d could manage.
Equipment, options and extras
Standard equipment is pretty generous on any A6. We've already talked about some of it in previous sections, such as the fact that all models come with electric front seats and LED headlights, but the entry-level Sport also comes with 18in alloy wheels, leather upholstery, dual-zone climate control, ambient LED interior lighting and keyless go.
We'd stick with Sport instead of upgrading to S line, partly because the bigger 19in wheels and firmer sports suspension of the latter don't help the ride quality, but also because other than adaptive LED headlights, most of the additions are purely styling add-ons.
We would recommend adding a few options, though, such as adaptive dampers and the Technology Pack.
Audi finished 22nd out of 31 brands in our 2020 Reliability Survey – ahead or Mercedes, but one place behind Jaguar and 13 behind BMW.
The A6 comes with a three-year or 60,000-mile warranty (whichever you reach first), and you can extend this for up to five years or 90,000 miles for a reasonable additional cost.
Safety and security
The A6 gets a five-star rating from the safety experts at Euro NCAP. If you compare the individual test categories to its main rivals – the 5 Series and E-Class – the scores are generally very good, too, although the E-Class does achieve slightly higher adult and child occupancy scores.
Standard safety equipment includes automatic emergency braking and lane-keeping assistance, while other features, such as blindspot monitoring, can be added as an option.
Security expert Thatcham Research has given the A6 a good rating for resisting break-ins and theft, helped by its standard alarm and immobiliser.
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