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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
Everyone I dealt with here were great. These guys are straightforward and professional.
Easy to work with. Everyone helped if something was unknown with vehicle. I appreciated everyone involved.
Great dealer customer service and prices thanks again will definitely purchase another vehicle here in the future
Devin was professional and made our visit to the dealership an easy outing. He answered all questions we had
Nobu and service staff were helpful. No loaner car or shuttle was a negative. Diagnostic was expensive.
⭐⭐⭐⭐⭐ We had such a wonderful experience. Our salesman, Greg H, was extremely attentive, professional, and genuinely went above and beyond to make sure we were taken care of. He took the time to listen to our needs, answered all our questions, and worked with us every step of the way. We never felt pressured or rushed, which made the entire experience even better. His patience, honesty, and excellent customer service truly stood out. It’s refreshing to work with someone who genuinely cares about their customers and making sure they leave happy. We couldn’t be more pleased with our experience and would highly recommend him to anyone looking for exceptional service. Thank you for making the process so smooth and enjoyable!
Chelsea Jose is one of the service writers that I ask for when I take my car in for service. She is excellent, keeps on top of the service being performed and keeps me in the loop. A wonderful person!
I had an exceptional experience working with Greg and his team! From start to finish, the service was outstanding, and I cannot say enough good things about Greg. He is truly an excellent salesman who knows how to make the entire experience smooth, professional, and enjoyable. His communication, knowledge, patience, and dedication really stood out. He took the time to ensure everything went well, made me feel confident throughout the process, and went above and beyond to help achieve a successful outcome. What impressed me most about Greg was his professionalism and genuine commitment to providing excellent service. He is a great representative of his team, and his ability to build trust and make the customer feel valued speaks volumes about the kind of salesman he is. It is clear that he takes pride in his work, and that level of dedication deserves recognition. I also want to extend my sincere appreciation to the rest of his team for their hard work and support. Everyone played a part in making this such a fantastic experience, and I am truly grateful. I would highly recommend Greg and his team to anyone looking for exceptional service. If you have the opportunity to work with Greg, you will be in excellent hands! He made a lasting impression, and I would absolutely look forward to working with him and his team again in the future. Thank you, Greg, for going above and beyond and making this such a positive experience!
Excellent customer service with Juan as always! Thank you so much! I wouldn’t have my car serviced anywhere else
The dealership was clean and we were greeted immediately upon arrival and was helped from beginning to end and would recommend mark Christopher for any GM products.
For ABOUT 40 YEARS I have been a ford owner. I liked the Trax and decided I would check into it. Went to Mark Cristopher and was greeted with Richard. He showed us a few options and after settling on the finances we bought. The sales and finance employees were all very nice, low pressure. I would most likely buy from there again.
Great service and great leadership. All good. Very happy with our car. Thank you very much
Great service, very professional
Thorough check on my warranty claim. Juan kept me updated with my car and the EV technician performed every diagnostic for the drive motor sound. Although the sound was not resolved, the advice suggested that the car is safe to drive gave me reassurance
Very friendly and completed the job well