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Experience: "Whatever It Takes"

The New GMC, Buick Lineup

All Commercial Electrics SUVs Trucks
  • GMC 2025 Sierra 2500HD
    starting at 68,499
    on sale for 65,499
    +HST & Licenses
    Save up to 3,000
  • GMC 2025 Sierra 3500HD
    starting at 70,499
    on sale for 67,499
    +HST & Licenses
    Save up to 3,000
  • GMC 2025 Sierra 1500
    starting at 51,699
    on sale for 49,699
    +HST & Licenses
    Save up to 2,000
  • GMC 2025 Acadia
    starting at 55,899
    on sale for 54,699
    +HST & Licenses
    Save up to 1,200
  • GMC 2025 Yukon
    starting at 94,699
    on sale for 88,699
    +HST & Licenses
    Save up to 6,000
  • GMC 2025 Yukon XL
    starting at 98,199
    on sale for 92,199
    +HST & Licenses
    Save up to 6,000
  • GMC 2025 Terrain
    starting at 37,699
    on sale for 36,699
    +HST & Licenses
    Save up to 1,000
  • GMC 2025 Canyon
    starting at 53,899
    on sale for 52,899
    +HST & Licenses
    Save up to 1,000
  • GMC 2026 Terrain
    starting at 37,999
    +HST & Licenses
  • GMC 2026 Sierra EV
    starting at 82,899
    +HST & Licenses
  • GMC 2026 HUMMER EV Pickup
    starting at 133,898
    +HST & Licenses
  • GMC 2026 HUMMER EV SUV
    starting at 133,898
    +HST & Licenses
  • GMC 2026 Sierra 1500
    starting at 52,199
    +HST & Licenses
    Save up to 5,000
  • GMC 2026 Acadia
    starting at 56,799
    +HST & Licenses
  • GMC 2026 Sierra 3500HD
    starting at 70,499
    +HST & Licenses
    Save up to 3,000
  • GMC 2026 Sierra 2500HD
    starting at 68,499
    +HST & Licenses
    Save up to 3,000
  • GMC 2026 Canyon
    starting at 54,099
    +HST & Licenses
  • GMC 2026 Yukon
    starting at 96,399
    +HST & Licenses
  • Buick 2025 Encore GX
    starting at 33,449
    on sale for 32,699
    +HST & Licenses
    Save up to 750
  • Buick 2025 Envista
    starting at 31,299
    on sale for 30,799
    +HST & Licenses
    Save up to 500
  • Buick 2025 Envision
    starting at 47,599
    on sale for 46,399
    +HST & Licenses
    Save up to 1,200
  • Buick 2025 Enclave
    starting at 62,099
    on sale for 60,899
    +HST & Licenses
    Save up to 1,200
  • Buick 2026 Encore GX
    starting at 33,399
    +HST & Licenses
  • Buick 2026 Envista
    starting at 31,799
    +HST & Licenses
  • Buick 2026 Envision
    starting at 48,099
    +HST & Licenses
  • Buick 2026 Enclave
    starting at 63,099
    +HST & Licenses
  • GMC 2026 Savana Passenger
    starting at 61,999
    +HST & Licenses
  • GMC 2026 Savana Cargo Van
    starting at 55,299
    +HST & Licenses
  • GMC 2025 Savana Passenger
    starting at 61,999
    +HST & Licenses
  • GMC 2025 Savana Cargo Van
    starting at 55,199
    +HST & Licenses
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Commercial Vehicles

We get it. When it comes to your fleet, you can't afford mistakes. You need the right vehicles, customized to your specific business needs. You need a dealer you can count on and you need every dollar to count.

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Mills Motors Buick GMC | GMC, Buick Dealership in Oshawa

Your vehicle is one of the most important things you own. It gets you to work, gets your kids to school, helps you run errands around town, and lets you take to the open road. For something so essential to everything you do, you want to rely on the very best dealership in the area for sales, financing, service, and parts. That dealership is Mills Motors Buick GMC.

The first thing people notice when they visit us in person is the size of our inventory. We carry the full lineup of new vehicles from Buick and GMC. There are many options for every driver and every budget. We also have a huge inventory of pre-owned vehicles from other major automakers, which makes it easy to comparison shop. When the right vehicle jumps out at you, our expert financing department is here to get you approved for the loan you need quickly at a competitive rate.

Once you're on the road, trust our professional service department to handle all your long-term maintenance and repair needs. You car is in good hands with our team, and we will do everything possible to provide superior work faster and at a lower price. You can also take advantage of our parts department to find official parts and accessories for purchase for all Buick and GMC vehicles.

Car shoppers from far and wide choose to work with us a because of our total commitment to customer service. We will do whatever it takes to ensure your experience accommodates all your needs, saves you money, respects your time, and leaves you fully satisfied. Visit us in person Monday through Saturday at 240 Bond Street East in Oshawa, and contact us if we can answer any of your questions.

2025 Buick Envista: Modern and Dynamic

Buick is a brand I deeply respect. In just a decade, it has managed to shed its image as a beige automaker for older buyers and reinvent itself as a youthful brand offering modern,…

Published on August 04, 2025

2025 GMC Sierra 1500: One for All and All for One

The last thing you should do if you're looking to buy a truck and aren't already loyal to a particular brand is ask a friend for advice. Pickup truck owners are notoriously territorial…

Published on May 25, 2025

2026 GMC Hummer EV: What's New?

Just like its gasoline-powered predecessor, the GMC Hummer EV is one of the most impressive—and also one of the most power-hungry—vehicles in its class. But that’s…

Published on May 23, 2025

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