Used 2018 Audi A5 Sportback for SaleNationwide

How much does the 2018 Audi A5 Sportback cost?

Prices have softened 10.40% compared to this time last year, making it a favorable time to shop this model year.

There are 302 listings available, which gives you a modest amount of inventory to compare.

Is the 2018 Audi A5 Sportback a good car?

Yes — the 2018 Audi A5 Sportback earns a 4.86/5 user rating and an 8.17/10 expert rating. The standout strength is Look and feel at 10/10.

Owners consistently praise the smooth ride, sporty look, and fun driving experience. They also like the advanced tech and comfortable seating, which fits a car that blends style, performance, and utility in a five-door hatchback body. That makes it a strong fit if you want something upscale and distinctive rather than a conventional luxury car.

The market also shows 35.4% good or great deals, which suggests there are still some attractive opportunities if you shop carefully.

Is the 2018 Audi A5 Sportback reliable?

Owners rate it 4.86/5, a strong signal of long-term satisfaction.

The owner feedback points to a car people feel good about living with over time, especially because they describe it as smooth, sporty, and enjoyable to drive while also appreciating the feature set. The expert review also frames it as a car that feels thoughtfully put together and well suited to buyers who want a premium daily driver with useful utility.

Audi’s own positioning emphasizes a refined, well-equipped package, and the review notes that the car’s combination of good looks, extra utility, and enjoyable driving dynamics is appealing for long-term ownership. For used buyers, the main risk is less about the core character of the car and more about making sure the specific example you choose has been maintained and equipped the way you want.

What should I look for when buying a used 2018 Audi A5 Sportback?

At 61.6% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.

You should start with a vehicle history report and then prioritize a close inspection of body panels, paint consistency, and signs of prior repair. Because this model is often bought for its style and premium feel, condition matters a lot: a clean, well-kept example is more likely to deliver the ownership experience you want.

Pay extra attention to the equipment level, since some desirable features are trim-dependent and others were optional. If you care about advanced driver aids, infotainment, or comfort upgrades, make sure the specific car has them before you commit.

Key things to evaluate:

• Trim level: The Premium trim is the entry point, while Premium Plus adds blind-spot monitoring, rear cross-traffic alert, and Vehicle Exit Assist. Prestige adds front and rear parking sensors, a top-view camera system, and more advanced convenience and driver-assistance equipment, so the lower trims leave you with fewer standard features.
• Powertrain: The A5 uses a turbocharged 2.0-liter 4-cylinder engine with 252 horsepower and 273 pound-feet of torque, paired with a 7-speed dual-clutch automated manual transmission and standard Quattro all-wheel drive. The review also notes that the S5 uses a turbocharged 3.0-liter V6, but the A5 is the standard gas model described here.
• Safety package: Every A5 Sportback includes forward-collision warning, low-to-moderate-speed automatic emergency braking, occupant-preparation technology, and post-impact braking. Premium Plus adds blind-spot monitoring, rear cross-traffic alert, and Vehicle Exit Assist, while Prestige adds front and rear parking sensors, a top-view camera system, and the Driver Assistance Package with adaptive cruise control, lane-departure warning, lane-keeping assist, automatic high-beam headlights, and traffic-sign recognition.
• Infotainment: Audi Virtual Cockpit uses a 12.3-inch digital display and is optional on Premium Plus and standard on Prestige. The MMI Touch system adds an 8.3-inch display and handwriting recognition, and Audi Connect packages add connected services, including emergency calling and a Wi-Fi hotspot on the higher tiers.
• Fuel efficiency: The review says the car returned 22.5 mpg on the test loop and notes that this was below its EPA rating of 27 mpg in combined driving.

Which 2018 Audi A5 Sportback trim should I buy?

The 2018 Audi A5 Sportback is offered in 3 trim levels: Premium, Premium Plus, Prestige.

Here's the short version:

• Premium: This is the entry point, so it makes sense if you want the A5 Sportback’s core style, standard Quattro all-wheel drive, and strong overall driving character without paying for the higher-end convenience and driver-assistance upgrades.
• Premium Plus: This is the best-value trim for many shoppers because it adds blind-spot monitoring, rear cross-traffic alert, and Vehicle Exit Assist, while also unlocking more desirable tech such as Audi Virtual Cockpit as an option.
• Prestige: Choose this if you want the most complete version of the car, since it adds front and rear parking sensors, a top-view camera system, standard Audi Virtual Cockpit, a head-up display, and the Driver Assistance Package.

For safety-focused shoppers, the Premium Plus and Prestige trims are the ones to target because they add the most meaningful driver-assistance equipment.

Is now a good time to buy a used 2018 Audi A5 Sportback?

This looks like a moderate, selective buyer’s market, so you can shop with some leverage if you’re patient.

• Deal availability: 35.4% of listings are priced as good or great deals.
• Inventory: There are 302 listings available.
• Price trend: Prices have softened 10.40% compared with last year.
• Clean inventory: 61.6% of listings are accident-free.

If you find a listing below $17,656, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2018 Audi A5 Sportback's resale value?

The current average of $17,665 sits slightly below last year's $19,716.

That decline suggests the market has already adjusted downward, which can help you as a buyer today but may limit upside if you plan to resell soon. If you buy at the right price and keep the car in strong condition, you can reduce the impact of that depreciation curve.

The good news for future resale is that the A5 Sportback has a distinctive body style, strong owner satisfaction, and a premium image that can help it stand out from more ordinary used luxury cars. Vehicles with strong owner satisfaction ratings, like this model year's 4.86/5, tend to retain buyer demand, which supports resale value over time.

Is the 2018 Audi A5 Sportback safe?

The 2018 Audi A5 Sportback earns five-star ratings overall from NHTSA, though it receives four-star ratings for frontal-impact protection for the driver and front-seat passenger.

It earns an 8/10 safety score from our experts.

Every A5 Sportback includes forward-collision warning, low-to-moderate-speed automatic emergency braking, occupant-preparation technology, and post-impact braking. Premium Plus adds blind-spot monitoring, rear cross-traffic alert, and Vehicle Exit Assist, while Prestige adds front and rear parking sensors, a top-view camera system, and the Driver Assistance Package with adaptive cruise control, lane-departure warning, lane-keeping assist, automatic high-beam headlights, and traffic-sign recognition.

One caveat to keep in mind is the lower frontal-impact result, so if safety is a top priority, you should focus on a well-equipped example and verify that the driver-assistance features you want are present.

Should I buy a 2018 Audi A5 Sportback or consider a different year?

If you're weighing the 2018 against nearby model years, here's how to think about it:

Choose the 2018 if:

• 35.4% of listings are priced as good or great deals.
• At 61.6% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 10.40% compared with last year.
• Owners rate it 4.86/5 — a strong satisfaction signal.
• The 2018 stands out as a five-door hatchback that blends style, performance, and utility in a narrow but appealing niche.

The bottom line: If you want the A5 Sportback’s distinctive mix of style and utility, the 2018 is a solid year to target because prices have eased and there are still enough listings to shop selectively. If you’re especially price-sensitive, focus on the lower end of the range and prioritize condition and equipment over chasing the cheapest example.

These recommendations are based on CarGurus' proprietary market data from September 29, 2026, CarGurus experts' opinions, and generative AI.