The A6 is quiet, comfortable, spacious and an impressive luxury car all round, even if it isn’t quite as thrilling to drive as the class bestread the full model review
Stepping up to S line gets a stiffer suspension set-up (which we would actually recommend avoiding), along with bigger wheels, a sporty bodykit and Matrix LED lights.
Engine:3.0 TDI  Quattro
This 3.0 diesel engine offers more flexible performance than the 40 TDI, proving much more powerful but remaining very smooth in delivery while being impressively hushed, with a good amount of power for hot-footing along country lanes or powering through motorway miles. It will cost a fair bit extra to buy and run, though.