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*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
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Used
2018 Audi S6
for sale
near me
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
Amazing Car Buying Experience!!
This was my first time shopping for a car at iDeal Auto and I have to say, it was one of the BEST car buying experiences I have ever had. Different from most other car dealers, in the BEST possible way, the staff was courteous not rude; patient not pressured; and informative not condescending. I was in a hurry to purchase a reliable used vehicle for my son that wasn't going to break the bank. iDeal Auto really delivered for me. They were professional, very accommodating and we walked away with a great used vehicle. I will definitely go back to iDeal Auto next time I need to buy a car!
Hyndaui
A luxuriously soft leather with a rear view camera for outstanding reverse performances , heated seating for warm winter days . NASA's jet propulsion to
Used
2018 Audi S6 4.0 TFSI Premium Plus
Vehicle information
Features
Reviews
Used imports car dealer was great I will advise all
Used imports car dealer was great I will advise all friends and family to purchase a car from them I'm very happy with my purchase. Thank you!
This car is legitimately cool
It?s comfortable, modern, fast, and handles well. Definitely no regrets in buying one. If you?re on the fence about which Audi to get, spend the extra money and get the S6.
Used
2018 Audi S6 Prestige
Vehicle information
Features
Reviews
Buy great deal
Great I have to do this again good staff George sourial was great handling my purchase. Would recommend every one to going and get a quality vehicle.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
Great dealership.
Great dealership. Very professional and fair. I would defiantly buy another vehicle from here in the future.
Used
2018 Audi S6 Premium Plus
Vehicle information
Features
Reviews
Great!
Great!!! Smitty was very professional and helpful with my daughter's car purchase will recommend him too friends and family members
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
Super professional and great staff, would recommend to
Super professional and great staff, would recommend to everyone and anyone! Would come here again!
Used
2018 Audi S6 Prestige
Vehicle information
Features
Reviews
Heather at the service department is always professional,
Heather at the service department is always professional, appointments are on time, I’m told of all needed work before and after service is done. She is knowledgeable about all VW products, and is always concerned about her customer’s satisfaction.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
Poor and deceitful.
Poor and deceitful. Gave me an impression of a car in good condition but later found out that what they said was not true. Vehicle had taillight issues, engine oil at 50% brake pads and rotos messed up transmission fluid was not changed either. Car vibrates during stops. I was told something could be worked out if any issues but that is not true. No one answers the phone nor reply to text messages. Both the finance manager and the salespersons lied to me and that's not good for a business. Now i am stock with an issue that could have been avoided in the first place had they told me the truth.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
I had a very positive experience at Autos of Chicago.
I had a very positive experience at Autos of Chicago. The team was friendly, knowledgeable, and took the time to understand what I was looking for. The cars were clean, well-priced, and exactly as advertised. The buying process was quick and straightforward, with no hidden fees or surprises. I’m very happy with my purchase and would highly recommend Autos of Chicago to anyone searching for a trustworthy used car dealer.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
Had a great experience trading my car in and getting an
Had a great experience trading my car in and getting an almost new ride! Will definitely recommend to my family and friends.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
Superior customer service
Everybody was great especially the salesman! The business manager also got me in and out quickly which was nice! I got the exact truck I wanted for a price I thought was reasonable!
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
Dealership made things easy and im really happy with my
Dealership made things easy and im really happy with my purchase. easy deal and the team was very helpful. i worked with Tommy and he was patient with me while i was waiting for my insurance check to clear
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
In and out with the new vehicle in approximately 2
In and out with the new vehicle in approximately 2 hours. Excellent all the way around. The salesman was the best I?ve worked with in all my car buying experiences.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
Had a great experience at Indy Wholesale Direct.
Had a great experience at Indy Wholesale Direct. Lisa G. worked out two amazing deals—got us in two vehicles that we love. She made sure we were satisfied and all our needs were met.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
The dealer was professional and polite during our
The dealer was professional and polite during our interaction. The car was clean and he answered all my questions about it.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
They were very nice to work with I had no problems every
They were very nice to work with I had no problems every thing was great an car was delivered at the right time the wife was happy, beautiful car thank you.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
awesome support from Keith in the sales department
awesome support from Keith in the sales department answered every question and went the extra mile to really give us a great experience. Ask for Keith by name or a great experience.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
I recently purchased a 2023 Nissan Rogue SV with only
I recently purchased a 2023 Nissan Rogue SV with only 12,000 miles through IMOTO, and the experience was unlike any car buying process I’ve ever had — in the best possible way. At first, I was hesitant. The concept is unique: you connect with IMOTO on your computer while they share their screen and give you access to thousands of vehicles available at auction. You select the car you want, set your maximum price, and they attempt to purchase it for you. If successful, they add a flat $3,500 fee plus a very low $199 dealer fee — no hidden costs, no complicated add-ons. What impressed me most is that their fee is the same whether you’re buying a $10k car or an $80k car, making the pricing structure transparent and fair compared to traditional dealers. Even though IMOTO also keeps about 80 cars on their physical lot in Walpole, the real advantage is the huge online selection that changes daily. If you don’t win the auction or the car goes past your budget, you can simply try again the next day with a new option. I’ll admit I was skeptical about wiring money and just waiting for a car to show up. Some online reviews raised similar concerns, so I voiced this to my salesperson, Jordan. To my surprise, the CEO, Philip, personally called me to explain the process and address my concerns. He even offered to buy the car first, have it shipped and detailed, and let me pay upon delivery if I was satisfied. That level of trust sealed the deal for me. My wife and I chose the Rogue, and within five days — over Labor Day weekend, no less — the car was delivered to my driveway in New Hampshire. Two of Philip’s employees arrived with the vehicle, which looked even better than advertised. We were honestly surprised and elated at how spotless the car was — it looked showroom new. I still don’t know how they managed to get it purchased, transported from Illinois, cleaned, detailed, and delivered so quickly, but they did. I wrote the check, signed the paperwork, and the whole process was smooth, honest, and straightforward. Now, let me talk about the value. Before this, I had spent weeks researching Rogues at countless dealerships and online listings. What I discovered was shocking: even a 2021 base model S trim was selling for more than what I paid for my 2023 SV. And based on the mileage, condition, and features my car came with, I know I would have easily spent thousands more — easily $8k higher — anywhere else. Getting a newer, higher-trim Rogue at this price felt like an absolute win, and it confirmed for me that IMOTO’s model really does save buyers money. From start to finish, IMOTO exceeded my expectations. The transparency, professionalism, and personal touch (especially from Philip) turned what felt like a risky experiment into the best car-buying experience I’ve ever had. If you’re hesitant like I was, don’t be. IMOTO is the real deal, and I couldn’t be happier with my car and the entire process.
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
Ian and Mat are great to work with!
Ian and Mat are great to work with! I have bought from other Billion lots before and was never blown away. Of course the sales people are nice but Nissan, and of course Ian, goes above and beyond. I was never really impressed with the financing guys, they were cordial but not really personable. I always figured maybe it was the job. Mat is great to work with and really cares about helping people and making sure they have the best offers available to them! These guys are what every dealership should hope to be. Thank you all! I love my Rogue and the detail guys made sure she looks top notch!
Used
2018 Audi S6 4.0T Premium Plus
Vehicle information
Features
Reviews
Josh is quick to respond and a straight shooter.
Josh is quick to respond and a straight shooter. I would be very comfortable doing business with Pammi!
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Audi S6 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2025 Audi S6 | $86,316 | 1 Good deal |
About the 2018 Audi S6
4.0T Prestige shown (base trim).
- Seating
- 5
- Door count
- 4
- Drivetrain
- All-wheel drive
- Combined MPG
- 18
- Transmission
- 7-Speed A/T
- Engine
- 450.0-hp, 4.0-liter, 8 Cylinder Engine (Gasoline Fuel)
How much does the 2018 Audi S6 cost?
The 2018 Audi S6 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2018 S6 is $28,137, with pricing starting at $16,500.
What is the MPG of the 2018 Audi S6?
The 2018 Audi S6 offers up to 16 MPG in city driving and 24 MPG on the highway for a combined rating of 18 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2018 Audi S6?
The 2018 Audi S6 compares to and/or competes against the following vehicles:
Is the 2018 Audi S6 reliable?
The 2018 Audi S6 has an average reliability rating of 5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2018 S6 owners.
Is the 2018 Audi S6 a good sedan?
Below are the Cars.com consumer ratings for the 2018 Audi S6.
- Comfort 5.0
- Interior 5.0
- Performance 5.0
- Value 5.0
- Exterior 5.0
- Reliability 5.0
100% of drivers recommend this car
- Comfort 5.0
- Interior 5.0
- Performance 5.0
- Value 5.0
- Exterior 5.0
- Reliability 5.0
Premium Plus (1 style)
| Style |
|---|
| 4.0 TFSI Premium Plus |
| Inventory price |
| Starting at $71,900 |
| Combined MPG |
| 18 |
| Engine |
| 450.0-hp, 4.0-liter, 8 Cylinder Engine (Gasoline Fuel) |
Prestige (1 style)
| Style |
|---|
| 4.0 TFSI Prestige |
| Inventory price |
| Starting at $71,900 |
| Combined MPG |
| 18 |
| Engine |
| 450.0-hp, 4.0-liter, 8 Cylinder Engine (Gasoline Fuel) |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
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Audi S6 2018 4.0T Premium Plus
9 Great Deals out of 20 listings starting at $16,500
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This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
