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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
Only giving this dealership a 5 star because of Javier Juarez. He provided outstanding customer service throughout the entire processe. He was very professional, well knowledgeable and was prompt to answer all questions. I can’t say the same for the first experience I had here. Javier Juarez is a star!
Armando was great. He took his time and showed me all the trucks I wanted to see. I didn’t feel pressured at all and even stayed late to make sure I was getting what I wanted.
Working with Chelsea Jose was a sure pleasure, and every time I have worked with her she goes above what I expected.
I had some previous bad experiences with sales the last few times there, but this last experience with Ozzy was 5 stars.
Always great service when I bring my car in for service. Very friendly and knowledgeable about what my car needs.
Staff was friendly and professional Facility was clean. Process from start to finish was smooth
Very polite This is the second time purchasing a vehicle there it was good service the first time in 2018 so we came back for a third car now we had problems with the first car in 2018 but Warranty took care of us as best they could better than Toyota that's why we came back
I was extremely happy with my service on my Cadillac XT5. Nubo kept me informed throughout the entire process.
Very professional communication regarding transaction of purchasing a truck The details of explaining overall purchasing experience
I always receive the best customer service, they treat me like family. They explain everything clearly so that you understand what is going on with the vehicle.
Always very responsive quick and super helpful. Avo especially is always on top of what’s going.
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.