Why Rimrock Auto Group?

Rimrock 20 Years

Rimrock Auto Group is the largest auto group in southern Montana as such we have the largest selection of new and used vehicles available to you today.

Come experience the 'Rimrock Way'! With our friendly, knowledgeable staff. You'll be happy you did.

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Your One Stop for Everything Automotive


Whether you're looking for a new truck, a used car, service, parts, the latest accessories or anything in between, Rimrock Auto Group has it.

Since we're the largest group in our area, we've got the vehicle that you need at a price you can afford. Call today at 406-651-5000

Welcome to Rimrock Auto Group in Billings, Montana. Your Low Price Leader, Dedicated to Family Service!
With 7 seperate dealerships and 7 manufacturers under the Rimrock Auto Group banner, new and used selection is second to none.
  • New Inventory: Pick from brand new GMC, Chevrolet, Subaru, Cadillac, Mercedes, Volkswagen and Kia vehicles from our massive inventory.
  • Used Inventory: Fresh preowned inventory of over 300 units in Billings!

Welcome to the Rimrock Auto Group

Rimrock Auto Group, treats the needs of each individual customer with paramount concern. Being one of the largest Auto Groups in the Montana / Wyoming region, selling GMC, Chevrolet, Cadillac, Subaru, Volkswagen, Kia, and Mercedes-Benz, we know that you have high expectations, and as your primary Billings car dealer we enjoy the challenge of meeting and exceeding those standards each and every time. Our new and upgraded service departments have state of the art computer diagnostics equipment to make sure all your service appointments and needed repairs are efficient and accurate. Allow us to demonstrate our commitment to excellence!

Our experienced sales staff is eager to share its knowledge and enthusiasm with you. We encourage you to browse our online inventory, schedule a test drive and investigate financing options. You can also request more information about a vehicle using our online form or by calling (866) 694-4116.

If you don't see a particular vehicle, just send us your info, we will gladly inform you when a matching car arrives. If you'd like a see a vehicle in person, click on Dealership: Directions for step-by-step driving instructions to that dealership, or give us a call. We look forward to serving you! Please checkout all of our dealer site links at the top of the page or below.

1st Annual Rimrock Cadillac Golf Scramble | Chance to Win


Sunday, July 26, 2015 will see the first annual Rimrock Cadillac Golf Scramble, at Pryor Creek Golf Club (1242 Pryor Creek Rd, Huntley, MT 59037). Registration begins at 8am and you must register by July 23rd, 2015.

All proceeds will be donated to the Montana Family Foundation! In addition to conducting research and education, MFF is your voice in the the media for promoting pro-family values in Montana! MFF acts on your behalf to increase support for the traditional family. The Rimrock Auto Group is proud to support Montana Family Foundation.


  • Four Person Scramble
  • Shotgun Start at 9:00AM
  • 18 holes of golf/range balls/hole prizes including a chance to win a BRAND NEW car for a hole in one!*
  • Lunch will be provided after the tournament


Please Call 406-348-3900 for more information!

  • Rimrock Subaru loves dogs! | Rimrock Subaru
    At Rimrock Subaru, we love our dogs! How can you ever possibly repay your dog for a lifetime of love? Watch this epic story of a man who rewards his faithful, old friend with the weekend trip of a lifetime, with a little help from his Subaru Impreza. Show us how you #MakeADogsDay on Facebook, […]