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.

More Information

We are an enterprise centered around families

Rimrock 20 Years

The Rimrock Automotive Group is an enterprise centered around families. Its gracious corporate culture is enlivened by the purpose of ‘serving people.’.

With eight brands, an automotive detail and graphics shop, a quick lube and body shop, we are here to serve!

More Information

The Rimrock Automotive Group Approach

Customer Care

The Rimrock Automotive Group approach to good corporate citizenship aligns with our values of 'serving people' and endeavors to maximize the positive impact upon people we have as a business enterprise

More Information

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

With eight manufacturers under the Rimrock Auto Group banner, our new and used selection is second to none.

  • New Inventory: We carry GMC, Chevrolet, Subaru, Cadillac, Mercedes-Benz, Volkswagen and Kia vehicles in our extensive inventory of new vehicles.
  • Used Inventory: We offer a pre-owned inventory of almost three-hundred-fifty units spread across our Billings and Laurel locations!

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!

  • CarNu Detailing Center | Billings MT Car Wash, Detail, Protection
    Visit the CarNu web site at http://www.autotrimbillings.com/carnu-detailing-center/ Why is Detailing Important? It’s more than about “looking pretty.” Auto detailing is a professional, thorough cleaning, polishing and waxing of an automobile, both inside and out, to produce a show-quality level of detail. But more importantly, it helps maintain and protect your finish. “Remember, we don’t just […]
  • Bloomberg Business : Subaru is still the hottest car in America
    “The U.S. auto business in 2015 is a Hollywood movie—one big car chase and a happy ending. If there’s a hero, it’s scrappy little Subaru, the Japanese company best known as Fuji Heavy Industries. “U.S. drivers bought a record 53,070 Subarus in September, a 28 percent increase over the same month last year. No other […]