Used Audi A6 for sale near Richton Park, IL under $899,990

Sam provided me with the best service experience , good prices, explained how things go in my car , I have zero experience with cars, he went out of his way to explain everything for me and made things clear

Such a gorgeous vehicle, inside and out. Haven’t had a single issue with it for over a year of having it used. Inside of the vehicle is super roomy, and driving feels very comfortable, and really we’ll insulated!

Sam S. My sales rep. Was patient and honest. His no pressure approach was refreshing compare to the other dealerships I went to. They were quick and efficient. Repeat customer.

I love this car. Audi is the best looking car. I got Tango red metallic with black interior . When you open the door Audi rings light up so you can see better in dark

Kyle is very informative and helpful. He’s also very kind. If you’re looking for a new car be sure to ask for Kyle!!

This is the fourth Subaru we have bought from Castle Subaru. Dave set us up with Cheyene who helped us get exactly what we wanted. This will primarily be my wife’s car and they did everything to make her happy. Then we got to work with Stephanie who worked with us so we could creatively pay for the car without a loan. We are extremely happy with this team effort. There is a reason our family has bought all of their Subarus from Castle!

Bought my '16 A6 3.0 TDI a year ago with 89k miles, now has almost 110k miles, and drives like a dream still. Can't even tell it's a diesel engine by the way it drives and how quiet it is. I drive a lot for work, and the gas mileage is amazing! Interior is comfy, classy, and roomy. Drives like butter, handles like a sports car. Exterior isn't too flashy, it's perfect. No issues, and my last checkup at the German export dealer was perfect. My favorite car I've owned, now I want an A8 L!

Bought a Porsche Panamera had a good deal and great service I will be back again

Excellent car, just done 122K and runs like a dream, had it serviced regular by brilliant guys at the general motor company in Stockport in UK. Didn't want to trade in when lease finished. Looking to get many more miles Peter Gilligan

Enis was great. Helped our family out with a nice car. Couldn’t be more happy!

I bought my audi a6 quatro s line 3ltr tdi automatic 2010 just under a year ago have had regular servicing and 2 new front tyres, just passed its mot last week, all it needed was two new front bushes, total cost £120-00,I have put just under 40 000 miles on clock since having her, never missed a beat, a few minor things such as wiper blades, rear boot lid struts but all in all, a very reliable comfortable loverly vehicle, and yes, I most certainly will be getting another

This is a fun, responsive, reliable, well built car to drive. At over 75K miles now, and I really cannot even consider trading it in because I don't think I will enjoy a better ride.

They had what I was looking for. Went to go check it out, it was the best condition & price out of all the cars I had checked & there process with paperwork was quick & easy. Highly recommend!

My uncle had recommended me to them as he’s purchased many cars before with Baha. Nas and Mayra were super informative and helpful. This was my first time buying a car so i was super stressed but they made the whole process a breeze.

The car meets my needs for the next few years. I’m happy with the handling and the gas mileage so far. I’m satisfied with all the features and the car is comfortable and easy to drive.

Great job in and out. IT'S been a good experience so I will let people know.

Surprisingly powerful, effortlessly elegant, and large enough to adapt to your lifestyle. This car does it all. 300 hp, a performance driving experience, and a roomy back seat for a car seat all in one vehicle. Lay the back seats down and there?s room for two bikes to be fit into the trunk. 30 mpg highway. Smooth, powerful, and understated. This car is a must have.

Second car I purchased from castle gmc our sales person was Nubia /great experience every time helpful and always greats us as family highly recommend castle gmc Nubia and Brandon will take very good care of you . 👍🏻

Very nice upscale vehicle. Bought as a previously 2 yr leased auto, avoiding new car price and immediate depreciation. V-6 engine has no hesitation and quietness is excellent. My only two negatives are lack of storage for incidentals and a bit quirky audio that may reset from time to time ( must wait for it to go through a cycle). It has a mind of its own. Overall, excellent vehicle.

Mike R was amazing. He even traveled to Chicago to bring our car to a different locations so we could see it. I would highly recommend this location.

The new design is awesome. The size of the car is perfect. Leges room is so good and the screens in the dashboard looks fantastic

Thanks, Kristen, for making my car buying experience enjoyable! You were extremely helpful, knowledgeable and patient. My overall experience was satisfying from beginning to end.

This car has met my needs, comfortable, reliable, seems economic, nice exterior and interior design, easy to operate, my kids enjoy it. It’s overall very recommended.

Cheyenne Fontanez is the best! This process started back in March of 2025 when I was gone for the winter and she stayed in contact with me until we got a deal done on 10/8! It was a seamless process and I couldn’t be happier!

I have owned this car for just over a year. No mechanical problems, very fun to drive. Took it across the country, very comfortable for driver and passenger. Loves to cruise at 75-85 mph and will go much faster. I thought I got a great deal on it. I paid half the sticker price and it had under 10,000 miles on it.

I am so happy with my new 2022 Tesla Model S Plaid that I bought from Highline. Justin took care of me the whole time and even Vince helped me out with a few other things. Thank you Highline!

An truly amazing car with the best technology I have ever seen in an automobile. I am an electrical engineer so I don’t make that claim lightly. The best engineered car I have ever owned. I look forward to driving it whenever I need to go somewhere - a powerful comfortable car that can compete with cars costing much more.

Jay was great. He always provides excellent service. Work was done quickly and properly. The car was washed as usual. I would highly recommend this dealership.

Great car, comfortable and excellent performance. The buying process was made easy by knowledeable sales and support staff. Pleasant dealership. High tech sales and supportm

I had my Outlander serviced at this location and they were able to help us out with great discounts and promotion deals. I am very grateful and highly recommend coming to this location for car services.

We actually traveled four hours to this Chicago used car dealership that listed a lot of used model X's, drove a couple, then found out that they will personally inspect a car and give us a high-quality video walk around and deliver to us for $350 [chicago to 49417]. Nader was very helpful and patient. So we went home and kept checking online until that dealership listed the car with all the options we wanted, then got videos via txt, called back and asked some basic questions, then bought and had it delivered. They also helped us navigate the intricacies of an interstate purchase. We also learned that model X's move quickly, Driven Auto dozens of cars per week if not more, so when you see it you better pull the trigger quickly

Wonderful buying experience Kimmy was so helpful and nice as could be loving the new Audi wagon

This Audi is beautiful, inside and out, with genuine wood in the door panels, dash and center console, soft leather seats, and a massive amount of red light illumination throughout the front cockpit, that is fantastic while driving at night. The exterior is sleek and stylish. The ride is smooth, however the low profile tires do ruin some of the ride atleast on kansas roads that are far from smooth. The engine has no vibrations and suspension seems tight . All in all this is as close to perfection as it gets, German cars are the best.

Just what I was looking for. All the safety and technology combined with special features that make driving special again. A very special automobile for my family