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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
Avo handled my service issue in the most professional and efficient manner possible. His professionalism was greatly appreciated.
They were very honest and friendly, also fast and efficient! They did a good job of showing me all the options and were very accommodating with the trade in process.
Gil was are salesman. Fantastic! He showed me every car I asked to see. What I appreciated most about Gil was he wasn’t “salesmanie” I dislike car dealerships more than anything in the world. Always feel like vultures circling a meal. I feel like Gil was very knowledgeable about the car I bought. I didn’t feel like he was trying to sell me something I didn’t want. Now that I’m writing this review and reflecting; Gil was the only person in a long sleeve, collared shirt with a tie. It was over 90 degrees and that man was the only person running around in the heat. Very professional. I’ll be back for that Tahoe and I’ll buy it from Gil.
I also want to give a special shout-out to Johnny Mendoza for his exceptional customer service. He was an is incredibly friendly and helpful, and made the entire experience enjoyable from beginning to end. He truly knows how to take care of customers and made me feel like I was in good hands throughout the process. Excellent work, excellent service, and an excellent experience all around. I highly recommend the MC group, and ask for Johnny Mendoza
⭐️⭐️⭐️⭐️⭐️ I purchased my car from Mark Christopher while living out of state, and I’ve had such a great experience with them from the very beginning. I recently traveled back to California to visit family and needed to have some service done while I was there. They were able to get me in quickly, provided me with a loaner, and even cleaned my car before I picked it up! Their customer service is truly top notch. They consistently go above and beyond to make sure their customers are taken care of and happy. It’s refreshing to work with a dealership that makes the entire experience so easy and genuinely seems to care about their customers. I would absolutely recommend Mark Christopher to anyone looking to purchase or service a vehicle!
Great buying experience, they went above and beyond expectations Large selection of cars and models to choose from, sales staff was friendly
I purchased a Cadillac Escalade and this so not what I expected in customer service
Chelsea has been a great help to resolving the issues of my car. I appreciate her help and her updates..
Enjoyable, surprisingly. Great atmosphere, friendly staff who aren't all pushy. Had 3 kids with us, and it was great.
Great experience. Great staff. Had a great experience with polite salesman and finance staff. Highly recommend.
Jose made my vehicle shopping so easy. I called and he made it happen. I got there and he already had everything ready to go.
My overall experience was great! My salesman was very professional and knowledgeable regarding the 2500HD I was interested in.
Brady was great but everything else was lack luster and the sales process with Mark Christopher was unfavorable.
Real pleasure to deal with, no add on crap or hidden fees. Anthony was a breeze to work with
Very customer focused and transparent. Jason Ho the Finance guy was also great. Very straight forward