Greg Hess
Internet Sales Director
Mark Christopher Auto Center
2131 E Convention Center Way
Ontario, CA 91764
Love to give Great Experiences and gain raving fans...
Read moreDealership Experience
15 yrs, 10 mos
Industry Experience
18 yrs, 2 mos
433 Reviews
Write a Review433 Reviews of Greg Hess
February 27, 2026
Great experience! Made the process so easy. No false advertising, price, available incentives were clear before we even arrived, and had all the paperwork ready to go. Made the process so easy. No false advertising, price, available incentives were clear before we even arrived, and had all the paperwork ready to go. More
Other Employees Tagged: Sam Fakhouri, Frank Vera , Cesar
February 21, 2026
Great customer service. They were really eager to make sure I got the deal I wanted. They were really eager to make sure I got the deal I wanted. More
Other Employees Tagged: Armando Nuno, Mario Sanchez
January 20, 2026
Fantastic customer service! Went above and beyond to make sure I was taken care of Went above and beyond to make sure I was taken care of More
Other Employees Tagged: Mario Sanchez
January 17, 2026
Excellent from beginning to the end. I try appreciate Luis and Gregg for all they put into this process I try appreciate Luis and Gregg for all they put into this process More
Other Employees Tagged: Luis Morales
January 15, 2026
Excellent service and very professional. I would highly recommend this dealership and service/parts department to others. I would highly recommend this dealership and service/parts department to others. More
Other Employees Tagged: Juan Fletes , Matt Flores
January 05, 2026
Everyone I worked with was very knowledgeable definitely Armando. I would definitely go back and work with everyone. I had worked with. I will definitely recommend Mark Christopher to my friends and family. Armando. I would definitely go back and work with everyone. I had worked with. I will definitely recommend Mark Christopher to my friends and family. More
Other Employees Tagged: Armando Nuno
January 03, 2026
New vehicle was not working correctly. Started with a dead battery and continued into a failed AC condenser coil. They're making it right and sent me home in a brand new loaner vehicle, bu Started with a dead battery and continued into a failed AC condenser coil. They're making it right and sent me home in a brand new loaner vehicle, but it took two weeks in their shop on the repairs and then they noticed they damaged the door and had to send it to a body shop for more repairs. I am still driving a car that isn't mine for an undisclosed amount of time until mine is finished and delivered to me. I'm not knocking the dealership, but this has been one thing after another and is still not resolved. I haven't even been allowed to drive the car yet and I'm less than two weeks from having to make my first payment on it. More
Other Employees Tagged: Jeff Rizzi, Javier Juarez , Richard Chiang
December 30, 2025
Armando and the whole crew at Mark Christopher are extremely professional, knowledgeable, friendly and just flat out a place that you want to do business with. No hidden fees, no secrets, just fast re extremely professional, knowledgeable, friendly and just flat out a place that you want to do business with. No hidden fees, no secrets, just fast reliable car buying. Love this place. Makes you feel like family More
Other Employees Tagged: Armando Nuno, Nobu Damon
December 27, 2025
Our sales rep, Mark Flores, was exceptional, knowledgeable, and very professional. Additionally, there was no high pressure sales tactics, which we really appreciated. He was patient, answered knowledgeable, and very professional. Additionally, there was no high pressure sales tactics, which we really appreciated. He was patient, answered all our questions and thoroughly explained the vehicle features. We would highly recommend him and this dealership. More
Other Employees Tagged: Matt Flores , Larry Lee
December 18, 2025
Greg Hess and the team were amazing helping with my new purchase. It was quick and easy. They are the best and I would not go anywhere else. purchase. It was quick and easy. They are the best and I would not go anywhere else. More
Other Employees Tagged: Sam Fakhouri, Mario Sanchez, Nate Heath, Sam Abdelmesseh, Lloyd Beardsley

