

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
Industry Experience
17 yrs, 4 mos
394 Reviews
Write a Review394 Reviews of Greg Hess
May 18, 2025
your customer service is poor, your people don't follow up, and you do not treat your customers with care. up, and you do not treat your customers with care. More
Other Employees Tagged: Nobu Damon
May 17, 2025
"Eric made us feel truly welcome and at home. Our experience at the dealership was one of the best we've had, thanks to the outstanding service and hospitality. We deeply appreciate the entire te Our experience at the dealership was one of the best we've had, thanks to the outstanding service and hospitality. We deeply appreciate the entire team for making us feel valued—especially Eric, whose kindness and professionalism stood out. Greg and Sam also played a significant role in the buying process, and their input was amazing. Overall, it was an awesome experience at a dealership with professional staff who understood exactly what I wanted and how to help me achieve it. Respectful, professional, and thankful—an excellent process!" More
Other Employees Tagged: Sam Fakhouri, Eric Nosser
May 02, 2025
Mark Christopher is always on top of it, helpful, kind and efficient. We buy and service all our vehicles here and always will. and efficient. We buy and service all our vehicles here and always will. More
Other Employees Tagged: Nate Heath, Tony Lopez, Lloyd Beardsley
April 30, 2025
Nick was very helpful, he knows a lot about cars. He made us felt comfortable. will come back for more . He made us felt comfortable. will come back for more . More
Other Employees Tagged: Nick Polytarhos
April 30, 2025
Great stock of vehicles with prompt service and courtesy sales representatives at the Chevy/GMC dealerships. sales representatives at the Chevy/GMC dealerships. More
Other Employees Tagged: Mario Sanchez
April 29, 2025
Great people, great service. Made my truck buying easy. I would recommend to my friends and family to buy from Mark Christopher. Made my truck buying easy. I would recommend to my friends and family to buy from Mark Christopher. More
Other Employees Tagged: JC Cavazos, Eric Nosser
April 28, 2025
This is a tough review, because some of my experience was great and some of it was not. I had my vehicle stolen and needed a replacement. I found this dealership through the Costco Auto program, and that cam great and some of it was not. I had my vehicle stolen and needed a replacement. I found this dealership through the Costco Auto program, and that came with some special discounts. This coupled with my timeline, waiting to get any news back about my old truck, lead to some less than optimal interactions with a couple of the sales people. I actually felt like I almost had to beg for attention, and got met with more roadblocks than solutions to my questions and needs. After switching from person to person, I did end up getting taken care of by Greg and Gilbert from the Internet Sales team. They were awesome and made everything right. I was able to get the perfect truck to replace my old one, and I'm very happy. I wish I could give 5 stars, but unfortunately since I got caught up with a couple sales people that I wasn't very happy with, I had to go with a 4. More
Other Employees Tagged: Gilbert Gonzalez (5 stars)
April 26, 2025
Greg's excellent service made us come back for 4th car from this dealer. Greg is honest and reasonable. I am planning to come back for my next car. from this dealer. Greg is honest and reasonable. I am planning to come back for my next car. More
Other Employees Tagged: Alex Sarabia
April 25, 2025
Happy returning customer. Anthony and Greg Hess made my experience great, I would not go anywhere else. Anthony and Greg Hess made my experience great, I would not go anywhere else. More
Other Employees Tagged: Anthonny Farfan
April 20, 2025
Armando and Greg were amazing! This was the easiest car buying process I have been through. I’ll definitely be back. This was the easiest car buying process I have been through. I’ll definitely be back. More
Other Employees Tagged: Armando Nuno