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Welcome to Mark Christopher Auto Center
Ontario's #1 Volume GM Dealer
Welcome to Mark Christopher Auto Center, California's #1 volume GM dealer and the Inland Empire's most trusted source for new Buick, Cadillac, Chevrolet, GMC vehicles. Located at 2131 Convention Center Way in Ontario, CA, we have been family-owned and operated for over 50 years, serving drivers from Rancho Cucamonga, Riverside, Fontana, Los Angeles, Anaheim, and throughout Southern California. Our commitment to competitive pricing, genuine customer service, and deep community investment has made Mark Christopher a household name across San Bernardino, Riverside, Orange, and Los Angeles County.
Shop New Buick, Cadillac, Chevrolet, GMC Vehicles in Ontario, CA
With one of the largest GM inventories in the state, Mark Christopher Auto Center gives Southern California drivers access to the full 2026 Buick, Cadillac, Chevrolet, GMC lineup under one roof. Whether you're configuring a Chevrolet Silverado 1500, cross-shopping the Traverse and Tahoe for family duty, or exploring the electric lineup with the Chevrolet Equinox EV or Blazer EV, our inventory has the trim, color, and package you're looking for. Browse our full new inventory and check out our must-see deals for current incentives.
Quality Pre-Owned Vehicles for Every Budget
Mark Christopher maintains a carefully inspected pre-owned inventory spanning a wide range of makes, models, and price points. Every used vehicle on our lot has been rigorously inspected and reconditioned before hitting the showroom floor. Budget-conscious shoppers can filter by price with our used vehicles under $25,000 collection, or check our latest pre-owned specials for additional savings.
Auto Financing for All Credit Profiles
Our finance center is staffed by experienced F&I specialists who work with a broad lender network to structure competitive loan and lease terms for buyers at every credit tier. Apply for financing online before your visit, or use our trade-in tool to get a market-based estimate on your current vehicle. Businesses across the Inland Empire also rely on Mark Christopher for commercial fleet financing on Buick, Cadillac, Chevrolet, GMC work trucks and cargo vans.
Expert Service & Genuine GM Parts
Our relationship with customers extends well beyond the sale. Mark Christopher's factory-trained, GM-certified technicians handle everything from routine oil changes and tire rotations to complex diagnostics, transmission service, and collision repair through our dedicated collision and body shop. Need work done on your schedule? Our mobile service brings certified technicians directly to you. Genuine GM parts are stocked on-site and available to order online. Check our current service and parts specials and schedule your appointment online today.
Proudly Serving Southern California for Over 50 Years
Mark Christopher Auto Center has contributed more than $11 million to local charities, nonprofits, and community organizations across the Inland Empire, because we believe a great dealership is measured by more than the vehicles it sells. Whether you're visiting from Pomona, Upland, San Bernardino, Moreno Valley, or anywhere across Southern California, our team is ready to deliver a completely personalized shopping experience. Contact us or stop by our Ontario showroom and experience the Mark Christopher difference today.
Our Reviews
Great job execelent work
Our Chevrolet Trax lease was coming to an end, so we decided to explore our options. The Buick Envista was one of the vehicles we had in mind. I told my husband, "Let's just go and take a look!" From the moment we arrived, we were greeted by Anthony, who took the time to listen to our needs and showed us several options. He was amazing from the very beginning! He explained all the details about each vehicle we looked at, answered our questions, and never made us feel pressured. He suggested we also take a look at the 2027 Chevy Equinox, and we absolutely fell in love with it! We ended up getting a great deal with all the applicable rebates, including the GM Loyalty Program and military discount. The finance department also made the paperwork process incredibly easy and quick, taking only about 5-10 minutes! Overall, it was a wonderful experience. We highly recommend this dealership, and if you visit, ask for Anthony! He was absolutely awesome!
From the moment I got in contact with Devon I knew I was going to end up with a new car for my wife. Every step of the way was straight forward and full of information. He answered every question my wife and I had with full confidence, I’m glad this is the place and the person I got with for this amazing experience.
The service at this dealership is good. They work quickly and the service team is very friendly.
Avo was fantastic, as usual— friendly, fun, and communicative. There was a delay in finishing my service, and he kept me informed all the way. There were no real problems with my car that affected my drive, so I can’t say things changed greatly with the service (except for the replacement of 2year old wiper blades!) but I am confident that the recall works was done properly and I am always treated well at Mark Christopher.
Best experience I've ever had purchasing a vehicle from a dealership. Gerald Waters is an excellent sales guy. 10 out of 10 would recommend to call up the dealer and ask for Gerald! Cesar in finance was extremely helpful and friendly, as well. Thanks, guys! The family is loving our new Chevy Blazer!
I highly recommend the service here! They were able to accommodate my GMC truck. Ask for Avo, he was very helpful with everything my truck needed.
Dealing with the internet team was very easy. I would recommend buying a car/truck from Mark Christopher.
There was a little back and fourth over my trade in , Gerald my sale guy manage to get the deal done
Avo was very helpful from the very beginning, he kept me in the loop with all the updates, I highly recommend working with him. Good job Mark Christopher.
I had a good experience when buying my 2026 black Buick Sports touring at Mark Christopher. Tomas Bautista was really helpful and guided me through every step of the process ...providing a lot of value. I love my car.
I took my GMC Sierra to Mark Christopher for the first time and I was impressed with the service. I met Avo at the service center and he helped me out with everything my truck needed. I highly recommend this place and don’t forget to request Avo!
Ceasar, service rep was very helpful. There's a loose wire underneath driver side of my dashboard. I plan to return there for checking. Otherwise, good experience
Always amazing service with Cesar.
I was very happy with the service and the honesty of the representatives at Mark Christopher. I felt like I was getting the best deal possible. I walked out with with the truck that I wanted at a fair price. I would recommend this dealership to all my friends and family.