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Taking a heavy trailer onto Interstate 70 during peak St. Louis rush hour or navigating narrow access roads around the Lake of the Ozarks requires focus and situational awareness. For GMC Sierra and Yukon owners in O'Fallon, towing equipment or family boats becomes much easier thanks to the GMC ProGrade Trailering System and its impressive network of up to 15 camera views. 

Precision Hitching Without the Guesswork

Hooking up a trailer usually requires trial, error, and plenty of backing up. The ProGrade system eliminates that frustration starting with Hitch View.

If you're shopping for a full size SUV with plenty of passenger room, impressive towing capability, and enough cargo space for everything life throws your way, chances are you've narrowed your search to the GMC Yukon XL and the Ford Expedition Max. Both SUVs are built for families, road trips, towing, and everyday driving, but there are several reasons why many Missouri drivers choose the GMC Yukon XL.

At O'Fallon Buick GMC, we help drivers throughout O'Fallon, St. Charles, Chesterfield, Wentzville, and the greater St. Louis area compare today's most popular SUVs. 

Let's be honest. Boxy, fragile European style vans look okay on social media filters, but when you want to build something that survives real Midwest weather, unpredictable potholes, and heavy duty projects, you need a vehicle with true backbone. Enter the legendary GMC Savana Cargo Van.

With its classic ladder frame design, up to 283.6 cubic feet of blank canvas cargo space, and an available 6.6L V8 engine built to tow up to 10,000 pounds, this is the ultimate foundation for your next big project. At O'Fallon Buick GMC, we love seeing how St. Louis…

If you are driving through the streets of Wentzville or heading out for a weekend at Cuivre River State Park near Troy, you have likely seen the distinctive chrome grilles of a GMC Denali or the rugged, lifted stance of an AT4. At O’Fallon Buick GMC, we know that choosing the right trim level is just as important as choosing the right vehicle. GMC has moved beyond simple base models to offer specialized sub brands that cater to two distinct lifestyles involving elite off road capability and world class luxury. Here is a breakdown of what these premium trims…

The electric vehicle revolution is about much more than just saving on fuel. It is about accessing performance capabilities that were once physically impossible for internal combustion engines. At O'Fallon Buick GMC, we are seeing this play out through the 2026 GMC HUMMER EV SUV and its most talked about feature: King Crab Mode. For drivers in the St. Louis area who want to merge a luxury lifestyle with extreme capability, this technology is a complete game changer.

Understanding King Crab Mode

You may have seen the viral videos of the original CrabWalk which allows the HUMMER EV...

For the past several years, the Buick lineup has been defined by its award-winning SUVs. From the nimble Encore GX to the luxurious three-row Enclave, Buick has successfully pivoted to meet the demands of modern families and commuters. However, a new shift in strategy is sparking conversation across the automotive world.

​*Source: https://gmauthority.com/blog/2026/03/buick-sedan-under-consideration-for-the-u-s/

The federal EV tax credit of up to $7,500, long a cornerstone incentive for electric-vehicle buyers, is slated to expire on September 30, 2025, following legislation enacted earlier this year. Have you considered an EV truck like the Sierra EV or Hummer EV? Now may be your chance to score an affordable price at O’Fallon Buick GMC near Troy, St. Louis and Wentzville.

The 2024 Buick Encore GX is small but mighty, especially regarding its safety features. Buick wants to keep drivers and their passengers as safe as possible, so it includes features you won't find on similar SUVs.

Buick is the brand you can trust to make high-quality and upscale vehicles. This year, a brand-new option is available. It is known as the Buick Envista, and it comes with everything O'Fallon, MO drivers need at an excellent price.

The 2022 GMC Yukon XL is packed with the latest technology features, making it the perfect vehicle for everyday needs. It boasts an 8-inch touchscreen display and an intuitive infotainment system that makes staying connected on the go a breeze.