Blog

The 2026 GMC HUMMER EV SUV makes a strong statement on the roads of Collinsville. This electric SUV measures 206.7 inches in length, 86.5 inches in width, and 77.8 inches in height. These dimensions give it a powerful presence that draws attention. Up front, LED headlamps paired with LED Daytime Running Lamps deliver excellent lighting while adding to the modern look. The heated power-adjustable mirrors include puddle lamps, side perimeter lighting, and auto-dimming on the driver side for added convenience.

The 2026 GMC Sierra EV is an electric pickup truck that offers exciting performance features. This truck runs on dual electric motors and comes with 4-wheel drive (4WD). On certain trims, you can get between 605 and 760 horsepower. The Denali Max Range trim provides up to 440 miles on a single charge, making it great for long trips around Collinsville.

When school lets out, families across Oklahoma start thinking about where to go on vacation. 

At Mark Allen Buick GMC in Collinsville, OK, we're excited to showcase the impressive 2025 GMC Sierra 3500 HD. 

Deciding whether to buy a new or used vehicle is a common dilemma for Collinsville car shoppers. Both options have their merits. New cars offer the latest features, better fuel efficiency, and bumper-to-bumper warranties. However, they also come with a higher price tag. At Mark Allen Buick GMC in Collinsville, you can browse our extensive new inventory to see the latest models we have in stock.

The 2025 GMC HUMMER EV SUV boasts an impressive array of utility features that make it incredibly capable both on and off the road. 

When it comes time to get a new vehicle in the Collinsville, OK area, one of the biggest decisions is whether to finance or lease. 

Looking for a powerful, capable work truck in the Tulsa area? The 2025 GMC Sierra 3500 HD Chassis Cab is ready to take on your toughest jobs. 

The 2024 GMC Sierra 3500 Denali HD comes standard with advanced driver assist features like HD Surround Vision to give you a clear overhead view around the truck. 

The 2024 Buick Encore GX is a subcompact SUV with impressive utility and capability.