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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
2021 Audi A4
for sale
near
Sudbury, MA
- 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
2021 Audi A4 45 S line Premium Plus
Vehicle information
Features
Reviews
I recently purchased a 2013 VW Convertible Bug from
I recently purchased a 2013 VW Convertible Bug from Gianna at Modern. Due to some family health emergencies my visits to the dealership were short and broken up. Gianna was patient and even drove to our home after business hours so that papers could be signed to make this dream a reality! Thanks to Gianna I finally have my dream car! I would definitely work with her again.
Exceptional!
The ‘21 A4 Premium Plus S Line is my third consecutive Audi ... love it! Quiet, powerful, safe and fast! This conveyance offers a great deal of wonderful, useful tech, too. It’s two tone interior is gorgeous. Love it!






Used
2021 Audi A4 40 Premium Plus
Vehicle information
Features
Reviews
Bradley Killed it!
Bradley Killed it! Got me in the right car in no time. ASK FOR BRADLEY!
Happy Steve
I used to lease a Mercedes C300, but the Audi A4 has better tech, is easier to use and a comparable ride. I am a happy customer!






Used
2021 Audi A4 45 S line Premium Plus
Vehicle information
Features
Reviews
We purchased a pre owned Golf and were very pleased with
We purchased a pre owned Golf and were very pleased with our experience. Everyone we worked with was professional and helpful. Low pressure attitude and well versed in their product and customer focused. We purchased the least expensive vehicle on the lot and received the same attention as I would expect from a high dollar purchase. What most dealers forget is that the hardest car to sell is the first one. They built the groundwork for future purchases.
Excellent Vehicle
So happy I extended the lease on my previous A4 to wait for the new 2021 A4s to come in. Except car both inside and out. Meticulous attention to detail and the new standard features in the 2021 A4 are incredible.






Used
2021 Audi A4 45 S line Premium
Vehicle information
Features
Reviews
Great communication.
Great communication. Shariff is a pleasure to deal with. Great facilities with great service. Would definitely recommend. I?ve serviced multiple vehicles with them and will continue to do so






Used
2021 Audi A4 45 S line Premium Plus
Vehicle information
Features
Reviews
This is my second Impreza from Wakefield Subaru.
This is my second Impreza from Wakefield Subaru. Love the car and impressed by the salesperson, Christian Finch. Knowledgeable and not pushy, which I really appreciate. Definitely recommend.






Used
2021 Audi A4 45 S line Premium Plus
Vehicle information
Features
Reviews
From the first contact with Ocean, I knew this was the
From the first contact with Ocean, I knew this was the dealership for me. Bridgette was attentive, yet not pushy when setting up my test drive, Aaron was willing to listen to my concerns and find the best deal for me and Kellayne was able to get me the APR I needed. I would definitely recommend going to see this team!!






Vehicle information
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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.
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Audi Certified
2023 Audi A4 Premium Plus 45 TFSI S line quattro S tronic
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Audi Certified
2023 Audi A4 Premium Plus 45 TFSI S line quattro S tronic
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Audi Certified
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Audi Certified
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Audi Certified
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Audi Certified
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Audi A4 prices by year
Model year | Average price | Deals |
---|---|---|
2017 Audi A4 | $16,986 | 6 Good deals |
About the 2021 Audi A4
40 Premium shown (base trim).
- Seating
- 5
- Door count
- 4
- Drivetrain
- All-wheel drive
- Combined MPG
- 27
- Transmission
- 7-Speed A/T
- Engine
- 201.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline/Mild Electric Hybrid)

How much does the 2021 Audi A4 cost?
The 2021 Audi A4 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 A4 is $23,449, with pricing starting at $13,900.
What is the MPG of the 2021 Audi A4?
The 2021 Audi A4 offers up to 24 MPG in city driving and 31 MPG on the highway for a combined rating of 27 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 2021 Audi A4?
The 2021 Audi A4 compares to and/or competes against the following vehicles:
Is the 2021 Audi A4 reliable?
The 2021 Audi A4 has an average reliability rating of 5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 A4 owners.
Is the 2021 Audi A4 a good sedan?
Below are the Cars.com consumer ratings for the 2021 Audi A4.
- Comfort 5.0
- Interior 5.0
- Performance 5.0
- Value 5.0
- Exterior 4.8
- Reliability 5.0
75% of drivers recommend this car
- Comfort 5.0
- Interior 5.0
- Performance 5.0
- Value 5.0
- Exterior 4.8
- Reliability 5.0
Premium (1 style)
Style |
---|
Premium 40 TFSI quattro |
Inventory price |
Starting at $39,100 |
Combined MPG |
27 |
Engine |
201.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline/Mild Electric Hybrid) |
Premium Plus (1 style)
Style |
---|
Premium Plus 40 TFSI quattro |
Inventory price |
Starting at $39,100 |
Combined MPG |
27 |
Engine |
201.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline/Mild Electric Hybrid) |
Prestige (1 style)
Style |
---|
Prestige 40 TFSI quattro |
Inventory price |
Starting at $39,100 |
Combined MPG |
27 |
Engine |
201.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline/Mild Electric Hybrid) |
S line Premium (1 style)
Style |
---|
S line Premium 45 TFSI quattro |
Inventory price |
Starting at $40,900 |
Combined MPG |
27 |
Engine |
261.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline/Mild Electric Hybrid) |
S line Premium Plus (1 style)
Style |
---|
S line Premium Plus 45 TFSI quattro |
Inventory price |
Starting at $40,900 |
Combined MPG |
27 |
Engine |
261.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline/Mild Electric Hybrid) |
S line Prestige (1 style)
Style |
---|
S line Prestige 45 TFSI quattro |
Inventory price |
Starting at $40,900 |
Combined MPG |
27 |
Engine |
261.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline/Mild Electric Hybrid) |
*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 2021 Audi A4
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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.