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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 End Of Summer Savings 

UP TO 0% APR for  72! or $8,000 below msrp- On Select 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.

Green Brook End Of Summer Savings 

$5,000 below MSRP - Buick Encore 
Excludes taxes title, License and options.


Green Brook End Of Summer Savings 

$8,000 total value - 2016 Sierra 
Select Sierra. See Dealer for more details 
Offer ends 10/31/2016
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.

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