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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
I had an absolutely great experience working with Jose. From the moment my fiancé, my daughter, and I walked in, he made us feel more like family than customers. That really stood out to me because I’ve dealt with several dealerships during this process, and I honestly felt like I had to pull teeth and nails just to get straight answers and competitive numbers. Jose was completely different. He was down to earth, genuine, and straight to the point. At no point did I feel like he was xxxxxxxxxxxx me, playing games, or trying to pressure me into something. He listened to what I wanted, worked with me, and ultimately beat the other offers I had been given. What I appreciated most was that he made the entire experience feel comfortable and transparent. Buying a car can be stressful, especially when you’re comparing multiple dealerships and trying to make sure you’re getting a fair deal, but Jose made the process feel easy. I can honestly say I left feeling like I didn’t just find a good deal — I found a salesperson I’d be comfortable coming back to. When it’s time for my daughter to get her car, I’ll definitely be reaching back out to Jose, and I would absolutely recommend him to my friends and family. If you’re looking for someone who is genuine, straight-up, and actually willing to go the extra mile for you, I highly recommend Jose. He earned my business today and will definitely have it again in the future. Thank you again, Jose!
I have been coming to this dealership for a couple of decades now and I’m never disappointed. All the staff is courteous and professional. Had the exact truck we were looking for and then some. Alex S. went above and beyond to take care of us and all our needs. Would highly recommend Mark Christopher Auto Center.
It felt like a extended family Best experience at any dealership I've ever had Thank you
Everyone felt like old friends , great attitudes, great people and atmosphere Would buy again from this dealer because of the quality of people who work there
José was very helpful from the very beginning being transparent with us estimating the cost of each truck. Jose and the rest of the staff were also very accommodating not just to me but the rest of my family that was with us.
Excellent service from our salesperson Bryan Morales , very professional and possesses great customer service skills
My interaction with Mark Christopher auto center was great. I searched for a car online, showed up to see it and came back the next day to purchase. All went smoothly.
I had an amazing experience at Mark Christopher Auto center. The service manager Dino Picanzo provided excellent customer service. He went above and beyond to make sure my vehicle was taken care of in a timely manner. He was always very polite and respectful. He kept me informed throughout the entire process. Will definitely take my vehicle back there if any repairs are ever needed.
Great dealer with no problem at all , saleslady Cynthia was a great help , quick and easy
Service writer (Ed Brady) was terrible about returning phone calls and following through with promises to call and keep us appraised of the ongoing service issues. I had to go to the dealership several times while my car was being serviced to obtain updates.. Unacceptable! Ed said he was going to top off the windshield cleaner fluid and replace the reservoir cap, never happened. I’m afraid my wife and myself will be going to another dealership for service and purchase.
Nice people easy to work with very straight forward on what it is and what it’s not overall easy to work with
Brought my car in for a second time for check engine light and they did not have a loaner vehicle available. Also was told my car was whistling because there were micro cracks in the brakes so I allowed them to fix the brakes which costed over a thousand dollars. The brakes are once again squeaking, and at times I hear a grinding sound. Not happy with this dealer at all and will NEVER buy another Cadillac.
Armando was a big help, Answered all my questions got me what I wanted so the deal got done. Would buy from from Mark Christopher again.
The auto’s purchased needs to be prepared better for delivery packaging not remove when got home fluids low
Service was quick and professional. Everything was explained well. I didn't wait too long either,