Mark Preston

Mark was very personable and knowledgeable. Made the experience as painless as it can be. Made the experience as painless as it can be. More

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I had a great experience with Mr Mark. Excellent service. Simple honest and easy with Mr Mark Excellent service. Simple honest and easy with Mr Mark More

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We came out to look at a car during a snow day and we were treated like it was a normal day. Our Salesman stuck around and made sure that we got the car that we wanted even when all of the other employee were treated like it was a normal day. Our Salesman stuck around and made sure that we got the car that we wanted even when all of the other employees were gone. He was there and ready for me when I brought it back for detailing after the snow storm. Highly recommend Mr. PRESTON. More

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I had a great experience working with Mark Preston at INFINITI of Gwinnett when purchasing my Cadillac Escalade. I drove about four hours from the Nashville area, and Mark made sure everything was ready INFINITI of Gwinnett when purchasing my Cadillac Escalade. I drove about four hours from the Nashville area, and Mark made sure everything was ready so the process was quick and seamless. He respected my time, kept things straightforward, and had me back on the road home in no time. Highly recommend asking for Mark if you want an easy, stress-free car buying experience. More

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Mark was an absolute pleasure to work with! The dealership was clean and everyone I came in contact with was very professional. The dealership was clean and everyone I came in contact with was very professional. More

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I had an excellent experience at Gwinnett Infinity dealership and can’t say enough good things about my salesman Mark Preston. From the moment we walked in, I felt welcomed and never pressured. He was dealership and can’t say enough good things about my salesman Mark Preston. From the moment we walked in, I felt welcomed and never pressured. He was knowledgeable, patient, and took the time to really listen to what I was looking for instead of trying to upsell me. The entire process—from test drive to financing—was smooth, transparent, and stress-free. All my questions were answered honestly, and I felt confident every step of the way. It’s rare to find a dealership that values customer experience this much. If you’re looking for a great deal and an even better buying experience, I highly recommend this dealership and especially Mark. More

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My husband and I were on the hunt for a new 2026 car due to an unexpected car accident prior to Christmas. We had visited several dealerships looking and test driving cars I was interested in. The QX80 Sp to an unexpected car accident prior to Christmas. We had visited several dealerships looking and test driving cars I was interested in. The QX80 Sport was one at the top of my list. When we arrived we were greated by Mark. I am so grateful he was “our guy”! I am also grateful for the help and exceptional service and help from everyone we worked with throughout the process. Mark was professional, knowledgeable just all-around fantastic! This was my first ever new car purchase and Mark and Jana were so incredibly helpful and knowledgeable! This was our first time in this dealership as well. Very impressed with the cleanliness of the dealership as a whole. I look forward to continuing to bring my NEW CAR to Infinity of Gwinnett for my car to be serviced! Thank you team! You made our experience ABSOLUTELY AMAZING!!!! More

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Infinity Gwinnett was fantastic across the buying cycle. Simple, honest, and easy. It was a great experience. Mark was great, and helped us select and purchase the right car for us. Absolutely trustworthy, Simple, honest, and easy. It was a great experience. Mark was great, and helped us select and purchase the right car for us. Absolutely trustworthy, and gave us the best options to choose from and helped us select the best car. More

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Dealership made buying a new vehicle easy and efficient. Mark was the BEST! He helped us make a decision and was very honest throughout the process. Mark was the BEST! He helped us make a decision and was very honest throughout the process. More

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Mark was very professional and made the process of buying our Infiniti easy and stress-free. He took care of all the up-front paperwork and moved things along quickly once we made it to the dealership to fin our Infiniti easy and stress-free. He took care of all the up-front paperwork and moved things along quickly once we made it to the dealership to finalize the sale. He was very patient with our questions about the vehicle and thoroughly explained how all of the features worked on our new car. I definitely recommend Mark if you're in the market for a new or used Infiniti! More

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