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

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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 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. 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.

Mercedes-Benz of Billings & the 2015 C-Class & GLA Launch Event

Mercedes-Benz of Billings hosted the 2015 C-Class & GLA Launch Event, October 11th, 2014 in Billings MT.

Several hundred people attended and we enjoyed DJ’d music, fine catered food by Asian Sea Grill, a weekend vacation giveaway, and, of course, the amazing new 2015 luxury cars during our non-sales event from 7 – 10pm. Check out some of our photos below!

Photos by Brandon S Templeton

See more of the action on our Facebook Page, and learn more about the sleek and streamlined 2015 C-Class and the rugged and capable 2015 GLA-Class Mercedes-Benz vehicles!

  • 2016 GMC Terrain Compact SUV | 3D Street Art | Rimrock GMC Cadillac
    The GMC Terrain is the perfect combination of styling, utility and efficiency. For 2016, the Terrain’s bold design has been updated and features a new hood design, redesigned front and rear fascia with chrome accents, new LED daytime running lamps and a new 3 bar grille design that is distinctively GMC. Check out this amazingly […]
  • Rimrock Subaru Shared the Love with Family Service, Inc
    For immediate Release – Family Service, Inc. of Billings Nets $12,189 from Subaru Christmas fund drive April 15, 2014 Rimrock Subaru of Billings recently announced the results of its “Share The Love” winter campaign to support Billings’ own Family Service, Inc. Subaru of America will be presenting a check for $12,189 to Family Service, Inc. […]