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New Offer!

2.49% APR for 36 months 90 Day Payment Deferral For Well-Qualified Buyers When Financed w/ GM Financial

2022 Buick Encore

New Offer!

1.90% APR for 36 months For Well-Qualified Buyers When Financed w/ GM Financial

2023 GMC Acadia

New Offer!

2.90% APR for 36 months For Well-Qualified Buyers When Financed w/ Cadillac Financial


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Discover your dream vehicle in our extensive collection! At Richardson Motors, we are dedicated to providing the best possible shopping experience for our CadillacBuick, and GMC customers from Waterloo, IA to Platteville, WI. If you're in the market for a new or used car, truck, or SUV in Dubuque, we invite you to stop by and see us. Take a look at our glowing reviews, explore the latest features, and even schedule a test drive with one of our new vehicles. Rest assured, every vehicle in our inventory undergoes rigorous quality checks before it becomes available for sale. Don't miss this opportunity to get behind the wheel - visit us today and take one for a spin!

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When you're ready to drive off in your dream Cadillac, Buick, or GMC, we're here for you. Shop with ease using our user-friendly online tools or let us handle the paperwork for you. Our goal is to get you behind the wheel as quickly and smoothly as possible, so you can be on your way in just 15 minutes if you prefer. However, if you'd like to take your time and go over every detail of your new vehicle, we're here for you too! The choice is always yours.

We Keep You Going

At Richardson Motors in Dubuque, IA, we're always ready to lend a helping hand with any car service or repair needs. And our knowledgeable Auto Parts Team is eager to assist in finding the perfect parts to keep your Cadillac, Buick, or GMC cruising down the road for many miles to come!

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5400 Westside Dr
Directions Dubuque, IA 52003

  • Contact Our Sales Department: (563) 582-5411
  • Monday9:00 am - 8:00 pm
  • Tuesday9:00 am - 8:00 pm
  • Wednesday9:00 am - 8:00 pm
  • Thursday9:00 am - 8:00 pm
  • Friday9:00 am - 8:00 pm
  • Saturday9:00 am - 5:00 pm
  • SundayClosed
  1. Richardson Buick GMC Cadillac

    5400 Westside Dr
    Dubuque, IA 52003

    • Sales: (563) 582-5411
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