New and used 2025 GMC HUMMER EV SUV SUVs for sale near Lake Forest, IL

I initially called this dealer when I saw an online used vehicle for sale. The sales person that answered the call and helped me was Sam. From the initial conversation up to making the purchase of the car Sam helped me in every step. Very knowledgeable and helpful person. I would trust this guy for any other purchase here for sure.

My husband went into the dealership this afternoon and worked with a member of the sales team named Victor. He was able to work with our credit and our trade in to get us into a reliable vehicle that we could afford. He was thorough and efficient and we were well taken care of. We appreciate his help and couldn't be happier with the experience.

Todd was very helpful and made sure my car was pulled inside when leaving as it was very slippery outside

Have trusted this dealership for over 25 years. I wouldn’t think of bringing my 2 Buicks anywhere else. They only do necessary repairs which I appreciate and will give you a timeline as to what to expect down the road when it comes to doing work. They value you as a customer and do everything they can to help you in all aspects serving you.

I haven't had time to get together with the dealership I am hoping to go in this weekend.

Juan was excellent to work with, we quickly agreed on a price, the vehicle was cleaned and ready to go by the time the paperwork was complete. Highly recommend.

I recently purchased the 2025 Buick Envista Sport Touring, and I’m absolutely in love with it! From the sleek design to the smooth driving experience, this car has everything I was looking for. What made the entire process even better, though, was the exceptional service I received from Michael Rancharan at the dealership. Also a shoutout to the finance department for making the process fast and convenient. 10/10 reccomend :)

Great staff and very good deals on new vehicles. Quick, friendly and very helpful. I would recommend if your looking for a great deal check with these guys first. They will get you that Great deal others can't.

Great service and people fast and easy buying process will recommend to other family and friends fun environment and provide coffee and water will be back for all my service needs and repairs

My salesman Esad was great. He was very knowledgeable. Everyone was very friendly and helpful.

Very professional, excellent communication Friendly staff, and had the vehicle we wanted, would deal with them again

Great people. Great service. Highly recommend Erick and team. They will give you a solid deal

I was truly steered by God to this dealership. I am now a customer for life. I found them while searching for a new Hummer ev on the GMC corporate website. I can with great confidence declare that Marquardt GMC and their entire team are truly the pinnacle of what they advertise “Expect, honesty, integrity and transparency.” Frankly, in their quest for professionalism and value for the customer they exceed all expectations. I say this after a lifetime of experience in buying cars as I approach age 70. Please know it’s a smaller, family run type businesses. Note that is has successfully been in business since 1950. That is a testament that they are truly best in class at all that they do. The buying process always seem long, but they go through the effort to make you feel at home, address every concern with care and consideration and make the process comfortable and enjoyable in contrast to the adversarial approach others often take. My wife and I genuinely appreciate the blessings to have found this place, the people, and so happy with our new GMC Hummer Pickup. I can’t speak highly enough about Dave (Sales Mgr) and Tim M, Sales Associate. Thank you very much for the experience, the vehicle and all of the continued support.

Jaguar of Northfield IL is a professional service dept of the highest order they miss nothing when doing repairs and keeping you informed and in the loop I am fortunate to have them close to us Thank you Tom and Luke and staff Art Patek

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 . 👍🏻

I am going to this dealership for last 10 years. Amazing staff and services. Always available to drop you off home if needed.

Best experience I've had when purchasing a vehicle. Everything was handled quicky and professionally with no pressure to consider anything other than what I had asked for. I was completely satisfied and would recommend this dealer and my sales associate Larry.

Brought my my car in for normal service and Mark Took care of me. He was great. He pulled up my history on my car and made recommendations for what I needed and explained everything they would do. Also gave me approximate cost of service which was Very close to his quote. Work was done very quickly. Just a great experience. I will be back for my next service when needed. Also everybody that works there were very friendly .

Nathan and Kevin was great. They made the car buying experience very simple and made sure that all of my questions were answered. Im very happy with my new Envista.

Overall easy experience, no headaches . Manny was helpful, straight forward, and was very helpful in getting into my new Buick.