An executive express for all occasions, one that’s comfortable, well screwed together and a classy way to get around: that’s the Audi A6. In this particular case, the one built between 2004 and 2011. And right now, it is sensational value for money.

The broad range of engines includes a rather frugal 2.0 TDIe, which averages 53.3mpg, and the 3.0 TFSI with 290bhp is great if you can afford the fuel costs.

As well as a saloon, there’s the Avant estate version, which ramps up the practicality with loads of useful hooks, eyes, stowage nets, a ski bag, optional reversible fl ooring and a rear bumper protector.

In 2008, the A6 was subject to a major refresh and you might spot the LED tail-lights and a bunch of new engines on the facelifted versions. The 2.0 TFSI makes a lot of sense to get into ULEZ areas, but when it comes to high-mileage regular motorway runs, the hard-working 2.0 TDIe 136 is the pick. Otherwise, there are the big oil-burners in 2.7 and 3.0 guise for the most relaxing way to eat up the miles.

But if the good manners of the standard A6 are too milquetoast for you, there is always the Audi RS6. It has bags of power – 572bhp, just in case you wondered, for a power-to-weight ratio of 279bhp per tonne. It will do a governed 155mph and gets to 62mph in 4.5sec. But RS6s need proper looking after. They’re best bought with a cast-iron history from a specialist.

Outside of an Audi RS6, there is plenty to worry about, with lots of aluminium in the bodywork, so it’s expensive to fix. Engine ECU failure usually means rough running and unserviced air-con can go on the blink, never mind the brakes and optional air suspension.

Ones we found