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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
Great dealership! Professional, clean, friendly staff. Will come back to get service done over my local dealership.
Great customer service from Greg. He was awesome !!! Will def come back because of him !!
Quick easy process from booking an appointment to drop off and pick up and very helpful and professional staffing.
Great customer service by Avo. Very attentive to our needs. Provided updates and our car was serviced in a timely manner.
came to look at some trucks just wanted to see pricings , we were asked if we wanted to buy and said we were just looking, this guy in the photo got up from the table and told us just to have a good day. Very unprofessional do not recommend going to him.. we later spoke to the manager and got the info we needed
The service people were very kind and polite at on time thank you
Professional, knowledgeable, kind and overall a blessing to workwith. Alex was upfront and personable and straight to the point.
It’s always a great experience with mark Christopher. Everyone is so friendly but also very professional.
Brady was kind & patient during walking me through setting my car up. I would recommend him to anyone looking to make a purchase
I've been coming here for over 9 years, and never had the experience I've experienced with the service Department and my high mileage vehicle.
If you're looking to purchase a vehicle, I highly recommend Devin Rangel Internet Sales Consultant at Mark Christopher Auto Center. Devin is absolutely amazing throughout the entire process. He is professional, patient, and genuinely takes time to listen to what you think instead of making you feel pressured. He makes the entire car-buying experience so easy and stress-free. Devin is always available to answer my questions, keeps me updated throughout the process, and goes above and beyond to make sure everything worked out exactly how I wanted. You can tell he truly cares about his customers and wants them to have a great experience. I've purchased vehicles before and know how stressful and time-consuming the process can be, but working with Devin was completely different. He made everything straightforward and comfortable from start to finish. I would definitely recommend Devin Rangel to anyone looking for a vehicle. If you want someone who is honest, helpful, professional, and actually cares about getting you into the right car, definitely ask for Devin!
The service was fantastic, and the choice of of vehicle was just what I wanted.
Service is quick and good. Pick up service is really important to me. Maintanience is quick,
How do you take my car out of the bay and lose it for 20 mins and 3 people try and “find” it only for one to come back and say it’s being washed that I requested the wash when I never requested a wash the person that told me this was the same person who checked my car in and I had told them i scheduled the first appointment because i had somewhere to be. Then send me a text to apologize and ask for a 10 star rating. Every time i come here it’s always shady. I’d rather pay full price to avoid shady places. Won’t come back
Clean, professional, thorough. Greg and his team were great and very accommodating and gave me a great tour and break down of the process