New and used 2026 GMC Terrain for sale near Sullivan, WI

Couldn't be happier with the Boucher team. Found the car my wife was looking for on their website at a price that motivated me to purchase the car from out of state and buy a plane ticket to pick it up. My wife arranged the sale over the phone and email. The entire car buying process was made easy by the professionals at Boucher headed up by Mr. Zylka. I flew into Madison and was picked up by "Jim" who really set the bar for the day by picking me up on time, being personable and one of the safest drivers I've ever seen. Once at the dealership I was met by Mr. Hacker who warmly welcomed me and immediately felt like a friend. Throughout the time I spent at Boucher Mr. Hacker exemplified the quality "stellar" he's the kind of guy who doesn't aim for great - he aims to be exemplary. Mr. Hacker ensured I had a place to put my bag and we went to see the car we'd bought. It had been brought into the building and was literally spotless. I bought a 2022 Certified Pre-Owned Cadillac and it looked as if it had just rolled off the line - not even a speck of dust. After seeing the car I was taken to see Mr. Samy the finance manager. I've bought a car or two and this was the part I was expecting some pressure to purchase some additional protection package or have the numbers previously agreed to change somehow. I could not have been more wrong. Mr. Samy made the paperwork end of the process enjoyable. I was offered add ons to the purchase, but all I had to say was "no" and that was the end of it - no pressure whatsoever. All the numbers previously agreed to were accurately reflected on the purchase contract. I thoroughly enjoyed the whole paperwork end of this process and that's because of the friendly attitude and professionalism of Mr. Samy. Once the paperwork was complete, the car was out front and Mr. Hacker took over an hour with me explaining all the new features of the car I was about to drive 16 hours back home. He was knowledgeable, patient and thorough in his explanations. It seems un-needed, but I hadn't ever sat in the driver's seat of a car with all the technology this car has. I don't need to sing the praises of Cadillac - you either appreciate them or you don't. I do sing praises for Boucher Cadillac and I wouldn't do it if I didn't mean it. The place is full of friendly, happy professionals and if you are going to buy a Cadillac, you will enjoy the experience at Boucher Cadillac - even if you buy from out of state and have to drive 16 hours back :)

I have had many Jeeps, when they stopped making the Cherokee I was at a loss until I came upon the GMC Terrain and so happy I did. Great style, performance handles great, many exceptional features, I spend a lot of time driving and never feel like it is tiring, lots of room in cabin and the cargo area. I have a new favorite, and it is the Terrain

Overall pleasant experience. I had some issues arise in the purchasing process, but they were all addressed timely and satisfactorily. Nice people to deal with.

I’m 56 and I’ve mostly owned trucks in my life. Out of the few cars that I’ve owned this 26 terrain elevation edition is the best car that I’ve owned. It’s comfortable and expensive gets good gas mileage plenty of room inside well designedand GMC has been a reliable brand for me over the years. I do recommend this car.

Great quick service. Oil change and tire rotation. Could have washed my wife?s car! Nice waiting room with vending machines and close by restrooms. Great Place to service vechile.

This is a very beautifu vehicle, very dependable but the gas mileage could be better. With all of the new technology, it is somewhat difficult to remember all of the various control panel options. Also the owner’s manual is very skimpy.

I will return. Best service department in Waukesha. And I have been to several of them.

I arrived late to pick up my vehicle. Fortunately one of the Service writers noticed my arrival as he was leaving for the night. He came back to the dealership and secured my vehicle and billing. Great service.

Just want to comment on the outstanding effort & style of salesman Mike Pehl. Spends whatever time & effort needed to make things happen. This is a late review as I leased a 2015 LTZ Equinox. Just wanted to him an atta boy. Thanks again Mike.

The best ever, I recommend everyone to go the to buy from them. Wonderful customer service!

I went in for an oil change and came out with a new vehicle. The sales staff are amazing. Friendly, accomodating and efficient. The manager in the service department pays attention to the details. He has been very friendly and accomidating.

Smooth purchase transaction. Saw the car I was looking for and purchased it with the help of a very pleasant knowledgeable young salesman. All done within hours.

Everyone was very polite and friendly Tim was very helpful and and courteous he went above and beyond to get my car repaired and can?t wait to come back in for normal service

They really made this a smooth experience. Especially when it came to the actual purchase of the vehicle. We dealt with Nick as our sales person and he was great at communicating with us and insuring any needs or concerns were addressed.

Great!! Did everything they could to make it a pleasurable car buying experience! Great job to the team at Boucher BGMC

They gave me some cookies and were very nice. And the car was super cool.

I was very happy with my entire experience at this dealership ship. The entire staff from the sales manager, salesman, service manager and master mechanic were all very friendly respectful and professional. I would highly recommend this dealership to anyone looking to purchase a vehicle.

Message sent directly to salesperson: Hanna, I will be recommending YOU whenever I know of someone looking for a vehicle. When someone is making a major purchase, like buying a car, it is so important to have a sales person with genuine integrity and relentless focus on the customer. Your communication throughout the process has been stellar; always keeping me updated. I appreciated that you not only focused on the sale, but also on doing proactive work to facilitate a smooth transaction on a specific day, with my family's needs in mind. That 'extra' means a lot!

I had the best experience buying my new Trax. Craig Winger was absolutely amazing. He is very personable He was great about what I wanted and did not try to persuade me in any way. Just a great guy and you felt more like he was friend than a salesman. The whole Lynch family was great. Tom and Dan were great also. Just a great experience for buying a vehicle, the best I have ever had. Craig thank you I Love my New Blue Trax. Would totally recommend Lynch for your next vehicle purchase. 10 stars and more

We have used this Cadillac dealership to service our Cadillacs for years. This time, we dropped the vehicle off to be serviced the next day . . . however, later that afternoon the phone rang and our car was ready to be picked up - a day early! What impresses me about this dealership is . . . the friendliness of their staff, the cleanliness of their facilities the quality of their repairs - all just top notch!