New and used 2025 GMC HUMMER EV SUV SUVs for sale near Hawthorn Woods, IL

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

Great people to work with. Very professional, courteous, helpful and thorough. They follow through with all of their commitments. The trade process was straight forward and was just as agreed.

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.

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

I never like the car buying experience but Jamie made it really easy. I walked away getting a car I really like and with a fantastic experience.

We've worked with Tony before & he is very knowledgeable & knows just what we like.

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

I have brought my vehicle in for every oil change I have needed. Always courteous and professional, my car gets a diagnostic check every time and is freshly washed. I like that the Service Department send out coupons, and making an appointment is easy online or with a phone call.

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

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

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

Amazing as always! Paul and his team always take care of me and the process is efficient.

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.

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

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 . 👍🏻

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.

Great service! Mark was awesome. My appointment ended earlier than expected too. Plus a comfortable waiting area with coffee!

Jarvis was great doing his job, was a pleasure will be back to see him soon