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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
Easy to work with, professional, and respected my time And he seemed very honest With me
Great customer service. I brought car in for an oil change. I was very pleased that it was done to my satisfaction.
Worked with us to get a good deal and the process was smooth and easy to deal with. Sales people were great
Great people great variety of cars and trucks to chose from and work hard tobget you what you want.
Joe was very helpful and informative about the truck and got me the best price possible. The financing was extremely easy and very informative with all the options for Additional coverages! It was a Great experience working with everyone!
They actually fix my AC on my encore.
Hard to get car issues resolved, long waiting lines for loaners, service/maintenance department careless
I had a great experience at this dealership! Gerald and Joel were both professional, friendly, and extremely helpful throughout the entire process. They took the time to answer all my questions and worked with me to find a great deal that fit my budget. They made the entire experience smooth and stress-free. I truly appreciate their excellent customer service and would definitely recommend this dealership, especially Gerald and Joel!
This is my 3rd time trying to make this review concerning my reason I like this dealership. I do not want to attempt again .
As always I receive exceptional service from Chelsea! She is awe-mazing. I usually drop my car off and in a dhort time its ready for picknup and washed!
Purchased our car with Cynthia C and had a great experience. Overall very satisfied with our purchase and all the help throughout the process.
Gregg was great. He was very helpful in making the entire process smooth and efficient.
Cynthia was our saleswoman, and she was amazing. She answered all her questions gave us a test drive, and even brought both cars together so I could see them side-by-side because I was unsure about the color. During the negotiation process she was fine doing most of it by phone since we could not be at the dealership. I would recommend my friends and family to come see her at
First time at Mark Christoper for service on my GMC truck and I was impressed with their service. The second I arrived I was greeted by the nicest man named Avo. He was so helpful from the get the go. I was able to get everything I needed serviced here. They do it all! I highly recommend taking your vehicle here and make sure to ask for Avo.
Great dealership, excellent customer service, friendly staff and overall my best experience buying a car im definitely gonna recommend to all my friends and family