Used Audi A6 cars for sale

Audi A6 buying guide

Did we mention that the A6 has a fantastic interior? Tech-filled and full of design details as crisp as a freshly ironed shirt, the A6’s cabin is a lovely place to drive past the UK’s motorway service stations. It has all the driver aids to take the stress out of tiring drives, not to mention plenty of infotainment functions to explore. Let’s circle back to that shortly.

What used Audi A6 trim levels are there?

Poorly equipped Audi A6s just aren’t a thing. The Sport trim is the opening act, but it still gets heated front seats, a rear-view camera, two touchscreens, LED lights and 18-inch alloy wheels.

Audi’s S Line trim is popular on any of its models, and on the A6 it brings sharper bumpers, sports suspension and wheels that are a size bigger. You also get sweeping indicators, showing cars behind you how important you are. Then there’s the Black Edition, which swaps the shiny silver trim for moody black, and also brings privacy glass and a set of 20s.

Vorsprung trim has everything but the kitchen sink – there’s air suspension, a panoramic sunroof, a B&O stereo and extra driver assistance features.

The S6 is basically a standalone model, but even this is available with standard, Black Edition and Vorsprung trim levels.

Audi A6 interior and technology

We know we’ve already touched on this, but the Audi A6’s interior is a highlight. It bears similarities to the cabin you get in the Audi A8, but here you get to enjoy it rather than your chauffeur. There are slashes of silver and darker-than-night black trim all over the place, and the material quality will have you stroking the dashboard like it’s the office cat.

A touchscreen for the climate controls might not seem the most sensible idea. Handily, Audi has given the gearlever a second use, by putting a hand rest on the top of it. Both screens need a firm press but are easy to operate, which’ll be a blessed relief after spending all day speaking in acronyms about hockey-stick sales figures.

Audi A6 engine range explained

Audi A6 40 TDI diesel

Diesel isn’t as popular as it once was, but Audi’s 204hp 2.0-litre diesel engine is a solid match for the A6. It’s almost silent at lower speeds, and never sounds particularly coarse like some rival cars do. Give yourself plenty of time to get to your next client and you could see more than 60mpg. But with its maximum torque figure coming in from just 2,000rpm, the A6 feels like express travel too.

Audi A6 40 TFSI petrol

The lowest-powered petrol matches the diesel’s output, but it’s nearly a second quicker from 0-62mph. Of course, it’s not quite as economical. Just shy of 40mpg is possible, which really isn’t too bad in a car as big as this. 

Audi A6 45 TFSI petrol

Above that is a 245hp 2.0-litre petrol engine that’s found in all sorts of VW Group cars, from the Volkswagen Golf GTI to the Porsche Macan. Here, it’s tuned for refinement, although you’ll still be able to scorch from 0-62mph quicker than said Golf GTI. Thank the standard-fit quattro all-wheel-drive system for that.

Audi A6 55 TFSI petrol

Very occasionally you might stumble across a 55 TFSI engine. This is a 3.0-litre six-cylinder petrol engine with 340hp, which provides incredible smoothness for those not too bothered about the cost of fuel.

Audi A6 50 TFSI e plug-in hybrid

If you spend a lot of time around town and in low-emission zones, the plug-in hybrid A6 makes the most sense. Drive predominantly using electric power and you could see over 200mpg, with the 14.4kWh battery enabling an all-electric range long enough to cover the average daily commute. It’s not solely focused on economy, though, as it’s able to accelerate almost as quickly as the 45 TFSI when the mood takes you.

Audi S6 TDI diesel

Rather unusually, Audi’s hot S6 model is powered by a diesel engine these days. It’s not short of power, with a 3.0-litre V6 diesel churning out almost 350hp. That brawny lump enables a five-second 0-62mph sprint. Or, when you’re not rushing around, you can get up to 40mpg.

Audi RS6 Avant petrol

The most potent A6, the RS6 Avant, comes with a thunderous 4.0-litre V8 petrol engine and a walloping 600hp. Hold on as you can hit A-road speeds in just 3.6 seconds from a standstill. It’s one of the fastest estates on sale. With so much performance, you won’t care that the RS6 only manages 22mpg at a cruise.