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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 S5
for sale
near
Thornton, CO
- 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 S5 3.0T Premium Plus
Vehicle information
Features
Reviews
Went in last Saturday to look at some used Tacomas.
Went in last Saturday to look at some used Tacomas. Used because that’s where my budget was, and I’ve never pictured myself getting anything brand new right off the lot. Michael Ramstetter helped me out, he showed me the used Tacomas that were in my budget. I drove about 4 of them, he was incredibly patient and helpful. After driving around the 4 used trucks, and not completely falling in love with any of them, he asked if I had put any thought into a 2025 which I hadn’t because they were out of my budget. But Michael kept my budget in mind while showing me the 2025’s. I of course fell in love with the bells and whistles that the 2025s had. Michael Ramstetter was amazing, he made my job easy and was able to work his magic and get the 2025 Tacoma TRD Sport down to my budget. I also traded in my Jeep same day, and drove off the lot with my brand new truck! Mountain States Toyota and Michael gave me the best car dealership experience I’ve ever had! 10/10 recommend this dealership to anyone!
STUNNING MACHINE S5 Cabriolet
I can write an entire diatribe about this car but I'll keep it simple! If you are looking for a luxury, convertible, look no further than the S5 cabriolet. I looked at the C43, M440i, this car, IMO, is the BEST value for the money! It is an absolute beast in the performance department, the options that come with this car for the price are unmatched and of course every single detail is perfectly executed!






Used
2018 Audi S5 3.0T Premium Plus
Vehicle information
Features
Reviews
Best Car Buying Experience Ever
I had the best car buying experience ever! Jacob was amazing from the time I called and spoke to him on the phone and met him in person. He found the perfect car for me! The finance department got the loan done quickly and was very straightforward and kind. In conclusion, Everyone was friendly, had my best interest in mind, and was very professional. I literally was in and out. Easy peezy!
Great fun to drive
It’s fun to drive ,fast ,smooth ,well build and looks great.just got itv3 days ago. Hope for relatability and look forward to take it on a long trip






Vehicle information
Features
Reviews
Great People and love the atmosphere.
Great People and love the atmosphere. Very helpful in any questions we had. Definitely would come back for my future car purchases.
Very sporty, love the ride and get up
Sweet ride and very sporty. Very comfy ride loaded with all the toys. Wish i could have bought the rs model. The car is very quick






Used
2018 Audi S5 Prestige
Vehicle information
Features
Reviews
Special thanks to Barb Beerman!!!
I know how everybody always runs to write a review when it comes to anything going wrong! I think it’s equally as important to let people know when you have excellent service I bought a Mercedes C 300 from Bob today and it was absolutely a seamless transaction.... The first time within a visit in a dealer that has the hassle free attitude and fortitude this was the first time that it was actually exercise correctly ! Bob thank you for the care and time that you put in on my quest !!!! Kindest, AS You rock!, also Shout out to the General Manager Larry and the Sales Manager Jason for assistant in our endeavor today couldn’t of done it without you guys so thank you so much love the car !
Love this car
This is an S5 convertible and it is a blast to drive. Plenty of power, great interior and is great with the top down. I love Audi's and enjoy driving them.






Used
2018 Audi S5 3.0T Prestige
Vehicle information
Features
Reviews
Awesome buying experience
Very good buying experience. We purchased a BMW with the help of Phil. Both Phil and the rest of the staff were always very friendly throughout the buying process and we never felt pressured to buy the vehicle. We were able to test drive the car by ourself and more than one time before buying.
I love my fun S5 red convertible .
My red S5 convertible was purchased from New Country dealer in Connecticut . It was purchased when I was 70. Everyday when I drive me car I feel 20 years younger! What fun‼️






Used
2018 Audi S5 3.0T Premium Plus
Vehicle information
Features
Reviews
The best Auto Sales
We just purchased a Jeep, from Adam in sales, and Kyle in financing, WOW what a team they are! Everything was so easy and fast! So friendly, and knowledgeable?! We are definitely coming back!!!! Thank you!!!!!!!






Used
2018 Audi S5 3.0T Prestige
Vehicle information
Features
Reviews
Quick and easy the staff was amazing and lots of car to
Quick and easy the staff was amazing and lots of car to select from would recommend






Vehicle information
Features
Reviews
They were fair and responsive.
They were fair and responsive. Answered all questions. Speed of buying experience was best I’ve ever experienced.






Used
2018 Audi S5 3.0T Premium Plus
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 S5 3.0T Premium Plus
Vehicle information
Features
Reviews
Great Dealership and Salesmen.
The best experience I had purchasing a car. Offer the best trade-in value for my vehicle. Went above and beyond for the best financing also. I have brought to cars from them. When it's time to upgrade ADI will be the first place I go.
There are 6 matching cars close to your year range.






Used
2019 Audi S5 3.0T Premium Plus
Vehicle information
Features






Used
2019 Audi S5 3.0T Premium Plus
Vehicle information
Features






Used
2019 Audi S5 3.0T Prestige
Vehicle information
Features






Vehicle information
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Used
2016 Audi S5 3.0T Premium Plus
Vehicle information
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Used
2016 Audi S5 3.0T Premium Plus
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About the 2018 Audi S5
3.0T Premium Plus shown (base trim).
- Seating
- 5
- Door count
- 4
- Drivetrain
- All-wheel drive
- Combined MPG
- 24
- Transmission
- 8-Speed A/T
- Engine
- 354.0-hp, 3.0-liter, V6 Cylinder Engine (Gasoline Fuel)

How much does the 2018 Audi S5 cost?
The 2018 Audi S5 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2018 S5 is $26,794, with pricing starting at $15,989.
What is the MPG of the 2018 Audi S5?
The 2018 Audi S5 offers up to 21 MPG in city driving and 30 MPG on the highway for a combined rating of 24 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 S5?
The 2018 Audi S5 compares to and/or competes against the following vehicles:
Is the 2018 Audi S5 reliable?
The 2018 Audi S5 has an average reliability rating of 4.8 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2018 S5 owners.
Is the 2018 Audi S5 a good hatchback?
Below are the Cars.com consumer ratings for the 2018 Audi S5.
- Comfort 4.8
- Interior 4.9
- Performance 4.6
- Value 4.4
- Exterior 4.7
- Reliability 4.8
83% of drivers recommend this car
- Comfort 4.8
- Interior 4.9
- Performance 4.6
- Value 4.4
- Exterior 4.7
- Reliability 4.8
Premium Plus (3 styles)
Style | ||
---|---|---|
3.0 TFSI Premium Plus | 3.0 TFSI Premium Plus | 3.0 TFSI Premium Plus |
Inventory price | ||
Starting at $62,300 | Starting at $54,600 | Starting at $54,400 |
Combined MPG | ||
23 | 24 | 24 |
Engine | ||
354.0-hp, 3.0-liter, V6 Cylinder Engine (Gasoline Fuel) | 354.0-hp, 3.0-liter, V6 Cylinder Engine (Gasoline Fuel) | 354.0-hp, 3.0-liter, V6 Cylinder Engine (Gasoline Fuel) |
Prestige (3 styles)
Style | ||
---|---|---|
3.0 TFSI Prestige | 3.0 TFSI Prestige | 3.0 TFSI Prestige |
Inventory price | ||
Starting at $54,600 | Starting at $62,300 | Starting at $54,400 |
Combined MPG | ||
24 | 23 | 24 |
Engine | ||
354.0-hp, 3.0-liter, V6 Cylinder Engine (Gasoline Fuel) | 354.0-hp, 3.0-liter, V6 Cylinder Engine (Gasoline Fuel) | 354.0-hp, 3.0-liter, V6 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.
Research the 2018 Audi S5
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
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.