How much does the 2018 Audi A5 Sportback cost?

Prices have softened 9.50% compared to this time last year, making it a favorable time to shop this model year.

There are 332 listings available, which gives you a useful amount of inventory to compare before you buy.

If you find a listing below $17,828.16, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2018 Audi A5 Sportback a good car?

Yes — 4.86/5 is a strong owner rating for the 2018 Audi A5 Sportback, and the expert score is 8.17/10. The standout strength is Look and feel at 10/10.

Owners consistently praise the smooth ride, sporty appearance, and fun driving experience. They also highlight the strong feature set, including advanced tech and comfortable seating, which fits the car’s role as a stylish 5-door hatchback that blends practicality with a more upscale, coupe-like look.

That makes it a strong fit if you want everyday usefulness without giving up design or driving enjoyment. 31.0% of listings are priced as good or great deals, so there are still some attractive opportunities in the market.

Is the 2018 Audi A5 Sportback reliable?

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

The owner feedback also points to a smooth, dependable-feeling driving experience, with praise for the car’s comfortable ride and strong feature set. That kind of feedback matters because it suggests the A5 Sportback can be a car you feel good about living with over time, not just one that impresses on a test drive.

The expert review also describes the car as enjoyable and confidence-inspiring to drive, with strong performance and a well-sorted chassis. On the ownership side, the available maintenance and service features add convenience, which can help reduce hassle in day-to-day use.

For used buyers, the main long-term risk is making sure the specific car you choose has been cared for properly, since condition and maintenance history will matter more than the badge alone.

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

At 65.7% 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 pre-purchase inspection, especially if the car has had bodywork or shows uneven wear. Focus on panel alignment, tire wear, brake condition, and signs that the car has been driven hard or repaired poorly.

Key things to evaluate:

• Trim level: The car is offered in A5 and S5 model series, with Premium, Premium Plus, and Prestige trim levels. The base setup is the most stripped-down, while Premium Plus adds more convenience and safety equipment, and Prestige brings the richest feature set.
• Powertrain: The A5 uses a turbocharged 2.0-liter 4-cylinder engine, while the S5 uses a turbocharged 3.0-liter V6 engine. The A5 is quick and efficient enough for most buyers, while the S5 is the choice if you want maximum acceleration and stronger performance.
• Safety package: Every A5 Sportback includes forward-collision warning, low-to-moderate-speed automatic emergency braking, occupant-prep technology, and post-impact braking. Premium Plus adds blind-spot monitoring, rear cross-traffic alert, and Vehicle Exit Assist, while Prestige adds parking sensors, a top-view camera system, and the Driver Assistance Package with adaptive cruise control, lane-departure warning, lane-keeping assist, automatic high beams, and traffic-sign recognition.
• Infotainment: Audi Virtual Cockpit uses a 12.3-inch digital instrumentation screen and is optional on Premium Plus and standard on Prestige. The MMI Touch infotainment system adds an 8.3-inch display and handwriting recognition, and Audi Connect features expand with higher trims.
• 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, and it gives you the core A5 Sportback experience with the standard safety equipment and the turbocharged 2.0-liter engine. It makes sense if you want the style, utility, and driving feel at the lowest starting point.
• Premium Plus: This is the best-value trim for most shoppers because it adds blind-spot monitoring, rear cross-traffic alert, Vehicle Exit Assist, and access to more tech and convenience upgrades. If you want the sweet spot between price and equipment, this is the one to target.
• Prestige: This is the most fully equipped version, with Audi Virtual Cockpit standard, a head-up display, parking sensors, a top-view camera system, and the Driver Assistance Package. Choose this if you want the most advanced tech and driver-assistance content.

The safety-package upgrades are meaningful as you move up the range, especially from Premium to Premium Plus and then to Prestige.

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

This is a moderate market, so you can shop selectively without expecting every listing to be a bargain.

• Deal availability: 31.0% of listings are priced as good or great deals.
• Inventory: There are 332 listings available.
• Price trend: Prices have softened 9.50% compared with last year.
• Clean inventory: 65.7% of listings are accident-free.

If you find a listing below $17,828.16, 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 $18,020 sits slightly below last year's $19,911.

That price movement 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 well, the softer entry price can reduce your depreciation exposure compared with paying closer to last year’s average.

The model’s appeal still matters for future resale because shoppers tend to respond to its style, utility, and strong feature content. 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?

It earns an overall score of 5 stars from NHTSA, but frontal-impact protection for the driver and front-seat passenger measures four-star.

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

Every A5 Sportback includes forward-collision warning, low-to-moderate-speed automatic emergency braking, occupant-prep 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 beams, and traffic-sign recognition.

The main caveat is that the federal crash test result shows a weaker frontal-impact rating than the overall score, so you should pay close attention to crash history and repair quality on any used example.

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:

• 31.0% of listings are priced as good or great deals.
• At 65.7% accident-free, a meaningful share of listings has prior incidents — history verification is especially important.
• Price trend: Prices have softened 9.50% compared with last year.
• Owners rate it 4.86/5 — a strong satisfaction signal.
• The 2018 stands out for blending style, performance, and utility in a 5-door hatchback body.

The bottom line: If you want the strongest mix of style, utility, and value in this generation, the 2018 is a sensible place to focus. If you’re especially price-sensitive, keep shopping the market closely and target the lower end of the range, but make sure condition and history are clean before you commit.

These recommendations are based on CarGurus' proprietary market data from August 28, 2026, CarGurus experts' opinions, and generative AI.