• New
• Pre-Owned

At O'Connor we have a strong and committed sales staff with many years of experience that are here to help you with all your Maine vehicle needs. Feel free to browse our large selection of new and used inventory online, request more information about any vehicle from one of our GMC, Buick, Chevrolet, Cadillac, and Volkswagen trained sales professionals, set up a test drive with a sales associate or inquire about financing!

Your Maine Vehicle Dealer

Thanks to our two convenient locations in Maine, O’Connor is never far away! Come visit our new state-of-the-art facility in Augusta, or for all your Medium/Heavy Duty Truck & Bus needs visit us in Portland. We always offer great prices, rebates and incentives for all our new and used cars, trucks (medium & heavy duty included), SUVs, vans, and other vehicles. We look forward to serving your vehicle needs and hope that we can help you with your next new or pre-owned vehicle purchase.

Customer Service Pride

Customer satisfaction is crucial to how we operate and our success. We proudly serve all of our local customers, as well as all of our neighbors in Belfast, Saco, Scarborough, Brunswick, Topsham, Windham, Oxford, Farmington, and other Maine locations.  Because of our outstanding service and great prices, customers travel from all across Maine to visit O'Connor. Find out what some of our satisfied customers have to say about us by visiting our testimonials page.

We have helped many customers with their GMC, Buick, Chevrolet, Cadillac, and Volkswagen needs from cities such as Portland, Bangor, Lewiston, Auburn, Gardiner, Wiscasset, Waterville, Skowhegan, Rockland, Belfast, Oakland, and York because they know they won't find better service when purchasing their next new or used vehicle. We look forward to being able to help you as well, no matter where in Maine you are coming from.

A Full Service Vehicle Center

At O'Connor, offering a complete and satisfying customer service experience is our number one priority. Our expert Service & Parts staff help our customers keep their GMC, Buick, Chevrolet, Cadillac, Volkswagen and other pre-owned vehicles in great shape. We have a top-of-the-line service center, as well as an earth-friendly collision center for all your vehicle repair needs. At O'Connor, we like to think of ourselves as your one stop shop for all your Southern Maine vehicle needs.

Our certified service technicians in Augusta and Portland, will keep your vehicle running and looking like the day you bought it. Also, our friendly staff will make sure your every visit to O'Connor is a pleasant one. The next time you need something fixed or are due for regular maintenance, treat yourself and your new or pre-owned GMC, Buick, Chevrolet, Cadillac, or Volkswagen to top notch service.

Large Maine Inventory at the Best Prices – O’Connor

If you plan to buy an Enclave, LaCrosse, Lucerne, Regal, Verano, CTS Sedan, CTS Sport Wagon, STS, DTS, SRX, Escalade, Escalade ESV, Escalade EXT, Escalade Hybrid, Avalanche, Aveo, Camaro, Cobalt, Colorado, Corvette, Cruze, Equinox, Express Cargo Van, HHR, Impala, Malibu, Silverado, Sonic, Suburban, Tahoe, Trailblazer, Traverse, Uplander, Volt, Acadia, Canyon, Envoy, Envoy Denali, Savana Cargo Van, Savana Passenger Van, Sierra 1500, Sierra 2500HD, Sierra 3500HD, Sierra Denali, Terrain, Yukon, Yukon Denali, Yukon XL, Yukon XL Denali, GTI, Golf, New Beetle, Jetta, Passat, CC, GLI, Routan, Jetta SportWagen, Passat Wagon, Tiguan, Touareg, Eos or other model vehicle, you will always find great prices at O’Connor.

We hope that you find our website helpful. Although O'Connor doesn't stay open 24 hours a day, our dealership website is always open 24/7, 365 days a year! Our website can help you research all new GMC, Buick, Chevrolet, Cadillac, and Volkswagen cars, trucks, SUVs, or vans that you would like to purchase. Peruse our inventory of all new and used vehicles that we offer, request a new vehicle price quote, find the value for your trade, view pictures and data about vehicles or learn about our current car or service specials. O’Connor – It’s All Here!