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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 was great! He explained everything that was serviced in detail. Thanks for all the assistance
Had a great experience and easy process with the purchase of my new Chevy 2500
Excellent service provide to sell my vehicle. Provided very reasonable price. Was very quick with no hassle
I had a great experience working with Jonathan Trimble. He made the process of purchasing our vehicles easy by having all the paperwork ready to sign when I walked in to see him.
Armando provided extraordinary assistance as soon as I arrived to Mark Christopher. He was enthusiastic, honest, and very knowledgeable in all regards that applied to me looking to purchase a vehicle. He made the process super transparent and easy for me. He was great and my experience was great.
We had a great experience working with Taylor Hill! He greeted us right away but was never pushy or made us feel pressured. We actually left to test drive a Toyota, and he simply gave us his information in case we decided to come back—which we did! He helped us through every step of purchasing our Yukon and kept great communication throughout the entire process. Friendly, helpful, patient, and professional. We would absolutely recommend him to anyone looking for a new vehicle!
It is because of the service department that I am so loyal that I continue to come to MCAC
The service during my last visit was disappointing. I had a scheduled appointment for an oil change, but my car was there for approximately three hours. I also requested a car wash, but at the end of the visit I was told they had run out of time, which was frustrating considering how long the vehicle had already been there. When the service was completed, I felt rushed out because the location was closing. No one took the time to review the service with me or explain whether any issues were found, if everything checked out, or if there was anything I should be aware of. I was essentially handed my vehicle and rushed out the door. For a scheduled service appointment, I expected better communication and a more thorough customer service experience.
Don’t trust this dealership with your automobile. They will price gouge you and not even fix what you came in for. Paid 1200 for subpar work with a xxxx xxx grin. I would not recommend this dealership to anyone and will never do business with them again.
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