At Suntrup Buick GMC, we offer a full range of financing and lease options for new and pre-owned Buick and GMC vehicles — and we work with buyers at every stage of life and every credit situation. Whether you're a first-time buyer, you've faced credit challenges in the past, or you're a seasoned buyer simply looking for the best path forward, our finance team is here to help. We work with a broad network of lenders, provide powerful online tools to help you plan before you visit, and charge no dealer fees, no admin fees, and no hidden costs at the desk. That's the Suntrup difference.
New Vehicle Financing and Lease Options
When you're ready to get into a new Buick or GMC, there are two primary paths: buying with an auto loan or leasing. Both options have real advantages depending on your priorities, and our finance department can walk you through the details of each so you can make the choice that's right for you.
Auto Loan Financing
We work with a network of lenders to secure competitive loan terms for new Buick and GMC vehicles. Flexible loan terms let you tailor your purchase to your budget — and once the loan is paid off, the vehicle is yours outright with no mileage restrictions and no further obligations.
GM Financial Leasing
Leasing through GM Financial is available on most new Buick and GMC models. Leasing typically offers a lower monthly commitment than purchasing, and at lease-end you have the flexibility to upgrade to the latest model, purchase the vehicle, or simply return it.
Benefits of Leasing
Lower monthly payment obligations, the ability to upgrade your vehicle every few years, and the peace of mind that comes with factory warranty coverage throughout the entire lease term.
Benefits of Buying
Build equity in your vehicle, drive without mileage limits, and enjoy the long-term ownership value of a paid-off asset. New purchases also include our Lifetime Powertrain coverage for as long as you own it.
Not sure which direction makes more sense for your situation? Our finance team can help you run the numbers side by side so you have a clear picture before you commit. Browse our full new inventory to find the model you want, then we'll work on the right terms together.
Visit Our Finance Department Browse New InventoryFinancing for Every Credit Situation — Including Bad Credit and First-Time Buyers
We work with buyers across all credit tiers — including buyers with challenged or limited credit histories. Our lender network is broad by design, because we believe your credit score is a starting point for a conversation, not a barrier to getting into the right vehicle. If you're a first-time buyer who hasn't established credit yet, or if you've faced financial setbacks in the past, we have programs and resources that can help.
Working with us to finance a vehicle can also be a meaningful step toward building or rebuilding your credit over time. Consistent, on-time payments on an auto loan from a reputable lender are one of the most reliable ways to improve your credit profile — and we'll help you find terms that make those payments manageable.
First-Time Buyer Programs
Select lenders in our network offer dedicated first-time buyer programs designed for buyers who are establishing credit for the first time. We'll help identify which programs you may qualify for and walk you through the application process.
Apply for Financing →Challenged Credit Solutions
Past credit challenges don't have to keep you off the road. We work to find financing terms that fit your current situation, even if your credit history is less than perfect. Our team approaches every application with the goal of finding a solution.
Explore Credit Solutions →Capital One Pre-Qualification
Use Capital One's pre-qualification tool to check your eligibility for financing with no impact to your credit score. It takes just a few minutes and gives you a realistic picture of where you stand before you ever visit the dealership.
Get Pre-Qualified →Buying Power Tool
Not sure what vehicle price range fits your budget? Our Buying Power tool helps you understand a realistic shopping range before you start browsing — so you focus your time on vehicles that truly work for your financial situation.
Check Your Buying Power →Online Finance Tools to Plan Your Purchase
We've built a complete set of online finance tools so you can do as much of the groundwork as you'd like from home — before you ever set foot on our lot. Each tool serves a specific purpose in the car-buying journey, and together they give you a clear, confident picture of your options.
- Payment Calculator — Enter your target vehicle price, down payment amount, and preferred loan term to get an estimated monthly payment range. A great first step for comparing different scenarios before you shop.
- What's My Buying Power — Understand your realistic budget ceiling before you start browsing. This tool helps you shop smarter by focusing on vehicles that genuinely fit your financial situation.
- Capital One Pre-Qualification — Check your financing eligibility in minutes with no hard credit inquiry and no impact to your credit score. See your pre-qualified offers before you arrive.
- Apply for Financing Online — Ready to get the process started? Submit our secure online credit application at any time of day. Our finance team reviews applications promptly and will follow up with next steps.
Maximize Your Trade-In Value
If you have a vehicle to trade, applying its value toward your next purchase is one of the most effective ways to reduce the amount you need to finance — which can make a meaningful difference in your monthly payment and the total cost of your loan. Our trade-in process is straightforward and transparent.
Start by using our online trade-in valuation tool to get an estimated value for your current vehicle in minutes — no appointment needed. Bring your vehicle in and we'll complete a final in-person appraisal. Whatever value we agree on goes directly toward your down payment, reducing the amount you finance from day one.
You can also use our Car and Drive Trade Tool as an additional resource to evaluate your options and understand your vehicle's position in the current market before you visit.
Value Your Trade Online Car and Drive Trade ToolThe Suntrup Lifetime Powertrain Loyalty Program — Built-In Value With Every New Purchase
When you finance a new vehicle from us, the value goes well beyond the vehicle itself. Every new purchase at Suntrup Buick GMC includes our Suntrup Lifetime Powertrain Loyalty Program — which covers two full years of complimentary maintenance through our 5 Works Packages (synthetic blend oil changes, tire rotations, and multi-point inspections) plus lifetime powertrain protection for as long as you own the vehicle.
That kind of long-term, predictable coverage makes financing a new Buick or GMC from us even more financially sensible — you'll know exactly what your maintenance costs will look like for years to come, which helps you plan and budget with confidence. It's one more reason buyers throughout St. Charles County trust our top-rated St. Peters dealership for their new vehicle purchase.
Learn About the Loyalty ProgramServing Buyers Across St. Charles County and Greater St. Louis
Our dealership at 4200 N Service Rd in St. Peters sits at the heart of St. Charles County, making us an easy and convenient destination for buyers from throughout the region. Whether you're coming from just down the road or driving in from across the St. Louis metro area, our team is ready to help you explore your financing options, run the numbers on a lease, and get behind the wheel of the right Buick or GMC.
Sales Hours
| Mon / Wed / Fri | 9:00 AM – 8:00 PM |
| Tue / Thu | 9:00 AM – 6:00 PM |
| Saturday | 9:00 AM – 5:00 PM |
| Sunday | Closed |
Start Your Buick or GMC Purchase Journey in St. Charles County Today
Whether you're ready to apply, want to check your buying power, or are just beginning to explore your options — we're here to help every step of the way. No pressure, no hidden fees, just straightforward answers and the right vehicle for your budget.