Providing an Excellent Purchase and Ownership Experience.

Green Brook Buick GMC is New Jersey's largest inventory of new and used Buick and GMC inventory.


Green Brook Auto Repair & Parts Department

If you're looking for used cars for sale in NJ, look no further than Green Brook Buick GMC. Our conveniently located Green Brook auto dealership allows us to serve central New Jersey customers with a huge selection of new and used cars, trucks, and SUVs in New Jersey. Here at Green Brook Buick GMC, our highly qualified staff is ready to assist you with the purchase of a Buick or GMC car, truck, SUV, or crossover. In addition, we offer financing, service, and parts. Come find your used or new GMC or Buick at Green Brook Buick GMC. We happily serve everyone from Bridgewater, Hillsborough, Edison, and other nearby areas.
PureCars Trade Report


We're proud of our 
testimonials. Somehow,
our customers always
seem to say it best.

Customer reviews

4.7 / 5

Dealer Rating

Our average rating from our customers is

4.7 / 5

Read Reviews

Close to Many Communities all over New Jersey and Hunterdon County

We have a wonderful selection of new and used cars, trucks and SUVs here at Green Brook Buick GMC, so if you are looking for a pre-owned GMC or Buick car or truck in New Jersey, then you have come to the right place. Check our used inventory right here on the site! Green Brook Buick GMC is the #1 Buick GMC dealer in the state of New Jersey. Need directions from Somerville, Hillsborough, or other communities? Check our map.

We have detected that you are using an outdated version of Microsoft Internet Explorer (version 10 or lower) that is no longer supported.To access this website, please upgrade to the new Microsoft Edge browser or Internet Explorer version 11, or alternatively you can use the latest versions of Chrome, Firefox or Safari browsers.