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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
Service was impeccable. Armanda was punctual, very friendly and extremely knowledgable with the inner workings of the car. He explained every feature to me in great deal and was gracious enough to drive the car out to me in Los Angels all the way from Ontario. Would highly recommend them to anyone who's looking at GM cars.
JC was excellent to work with. Great experience! I would definitely recommend but from him.
Check-in was a bit longer than expected. Service writer Provided clarity and transparency on questions asked. Over all smooth experience.
My family purchased a vehicle here 2 years ago. They have been maintaining it since. The staff is very professional and courteous. They update me on the status of my car when I have had to leave it. Overall it's been a great experience.
Jose was very courteous, he helped us make the deal we were satisfied with. He also showed us the features of the truck and helped set up XM and Onstar. After the purchase he also called to see if we needed anything.
I was very happy with the information given regarding my purchase. Everyone was very helpful and quick on answering all my questions .
Gregg Hernandez was an excellent help in finding me exactly what I wanted for my truck and made the hole experience really great. I appreciate his honesty and straight forwardness.
This dealership is great, good customer service, Favian was fantastic, he helped us in picking the truck that fits our needs.
Ozzy took care of us and did an amazing job. I told him what I wanted and he got me exactly what I asked for. I’m so in love with my car thank you Ozzy.
Smooth transaction, Professional, and Great Customer Service, Mario was on point with the truck details. Definitely returning!
They are always helpful, friendly, and always take care of any problems I have with any of my cars. Like I've said before they are the G. O. A. T. of auto service departments!!!
Prompt and knowledgeable crew. I’ll be back for next purchase. Thank you for all the excellent team work.
Everyone was professional, made the trade in process smooth and everything went as expected. Thank you
Had a great experience buying my Cadillac Lyriq from Ray Khoury! He was super nice, professional, and made the whole process easy. I'm grateful to do business with him