What is Audi S Line? Trims and Features Explained
Audi's S Line badge turns up on almost every model in the range – here's what it actually gives you, which cars you'll find it on, and what it costs on the used market.
The Cazoo editorial team
Published on 28 September 2026 | 4 mins read
We've checked this guide directly against Audi's current UK model listings, including recent naming changes, brand-new models and discontinued ones, to make sure every model, trim and price here is accurate and up to date.
If you're thinking about buying an Audi, you may have seen the badge 'S Line' crop up on a regular basis.
That's because S Line is a popular trim level on Audi's range of vehicles, whether they're new or second-hand.
But, what does S Line mean? Which Audis are available in S Line trim? Is it worth the extra and what do you get for your money?
Well, we're here to help, which is why in this article we've compiled a list of everything you need to know about Audi's S Line range.
What does S Line mean in the Audi model line-up?
If you look at the range of Audis available on the market, you'll notice that a lot of them are specified in 'S Line' trim.
S Line is essentially a popular trim level that the manufacturer uses to increase the appeal of its models – sprucing up the car's exterior and interior design with sportier features.
It's a similar scenario with what BMW does with its 'M Sport' trim level and Mercedes' AMG-Line. Our guide to BMW M Sport trim and guide to Mercedes AMG Line trim explain how those compare if you're cross-shopping the German rivals.
S Line offers a few extra bits of trim and sometimes equipment for only a fraction more than the standard car on which it's based.
What models are available in S Line trim?
Audi has reshuffled its range since we last updated this guide, so the S Line line-up looks a little different these days. Currently, S Line is offered across the A3, A5 (the model that replaced the old A4 in 2025 as part of Audi's move to odd numbers for petrol, diesel and hybrid models), A6, A6 Avant, A8, Q3, Q4 e-tron, Q5, Q6 e-tron, Q7, Q8 and Q8 e-tron – the renamed version of the original e-tron SUV – along with the newer A6 e-tron and A6 e-tron Avant.
The entry-level A1 and its Q2 SUV sibling are both in their final year of production, with Audi clearing remaining stock rather than building new ones, though S Line examples of both are still worth seeking out on the used market while stock lasts. The larger A7, and its S7 and RS7 performance versions, have also been discontinued for 2026. One model that doesn't get an S Line badge is the fully electric e-tron GT four-door coupe, which uses its own Quattro, S and RS naming structure instead, so don't expect to see 'S Line' badging on Audi's flagship EV.
Exterior changes
So, what are the exterior changes? Well, it all depends on which model you choose, but generally, Audi S Line models receive extra badging on their front radiator grilles and front wings, as well as larger alloy wheels, chrome window surrounds, side skirts, rear roof spoilers and silver detailing around the front and rear bumpers.
Also, cars like the Audi A3 S Line will typically get sports suspension, which lowers the car's centre of gravity, makes it handle better and gives the vehicle's overall look a much more aggressive and sportier stance – but can also make the ride less comfortable.
However, S Line cars will not receive a boost in power or an engine upgrade, all models are simply cosmetic with the firm's 'S' and 'RS' cars the ones to focus on if you want extra performance.
Interior changes
Just like with the exterior enhancements, not all Audi S Line models get exactly the same interior changes. It all depends on which model you go for, but as a general rule, a majority of S Line models receive a substantial amount of interior upgrades.
The most noticeable differences are the sports seats with thicker side bolsters, there is often a flat bottom steering wheel with perforated leather – plus some examples will come with 'S Line' badging on the wheel itself.
Other changes include stainless steel pedals, S Line kick plates when entering the car, and more chrome and satin silver detailing located around the vehicle.
But, just like with the performance-focused 'S' and 'RS' Audis, you won't see any carbon fibre or bigger bucket seats fitted to an S Line model.
How much does an Audi S Line cost?
Looking at today's second-hand market, a three-year-old (2023) Audi A3 S Line with around 30,000 miles on the clock typically costs from about £19,500. A similarly aged and specified Sport model comes in a little lower, from around £17,500 – so for roughly £2,000 more, the S Line still represents solid value against the standard car.
The A6 Avant remains a popular estate choice, and three-year-old (2023) examples with less than 30,000 miles on the clock in S Line trim are currently on the market from about £33,000. A similarly aged and specified Sport model comes in at around £30,500.
Meanwhile, if you're looking at an SUV such as the Q7 in S Line guise, prices for 2023-plate examples with around 30,000 miles currently start from about £34,500. A Sport model of the same age and mileage will typically be around £2,500 to £3,000 less.
If you want to go electric, the model to look for now is the Q8 e-tron – the renamed version of the original e-tron SUV – which is available in S Line trim. Three-year-old (2023) examples with typical mileage currently start from about £34,500, while an equivalent Sport or Technik-spec version is priced a little lower, from around £31,500.
Should you buy an Audi S Line?
The main question here is, is an Audi worth buying in S Line trim? The simple answer is, yes.
If you look at the extras you get for your money, and that prices on the second-hand market are only marginally more than a lesser-specified model, then the S Line trim represents great value for money.
Because Audi's model range and naming have shifted around so much recently, it's worth double-checking exactly which S Line model and generation you're looking at before you buy, especially on the used market where older and newer naming can appear side by side. It's also worth checking how much of the original manufacturer warranty is left on a nearly-new example – our guide to car warranties explains what to look out for.
There are loads of S Line models available on Cazoo today - so head over and check them out.