Army Ambulance Core - 1918 LG Peterson pictured just to the right of the horse on the right

It started with a wrench and a dream back in 1923. LG Peterson was fresh out of the Army where he was attached to the Ambulance Core as a driver and mechanic during WWI. The Military had recently deployed motorized ambulances which were replacing horse-drawn carriages and LG had a knack for fixing them. 

Idaho Falls 1925

After the war he decided to open as a Durant, Star and Buick Dealer. As Peterson Motor Company grew, LG was offered the Durant distributorship either in Boise, Idaho or Phoenix, Arizona in 1928, and eventually A Hudson distributorship in 1933. He chose to keep his family's roots in Idaho and packed up and moved Peterson Motor Company to Boise--down on 12th and Main.

Fall 1939 12th & Main - Idaho Dealers picking up the 1940 Hudson

Hudson Dealership Early 40's

That same year Marvin Peterson--LG's son--was born and so the legacy began. Marvin would eventually take over in 1950 and in April 1964 he struck a deal with Toyota to open the first dealership in Idaho. 

Marvin Peterson October 1950 with a 1951 Hudson Commodore 6

Moving day 1992 (moving from 12th & Main to Fairview)

Then, in 1984 and fresh out of college, Mark Peterson came on as the Manager of the Jeep store. With Marvin's experience and Mark's fresh ideas and customer focus, Peterson outgrew their location on 12th and Main and moved to the current location on Fairview and Maple Grove.

Peterson Auto Grand Opening 1992

Peterson Auto Grand Opening 1992

Now four generations strong--with Mark's sons Brady and Nils joining the team--Peterson Auto Group is Idaho's largest Car Dealership chain and is privately owned and operated. 

We live in the community where the dealerships are located and are in the stores on a day-to-day basis. This allows family values and relationships to permeate the businesses and create a real family atmosphere for our employees and our customers. 

Peterson views a car sale as the beginning of a relationship and a welcome into the family.  Over the years, many of our clients are 3rd and 4th generation customers and have bought and serviced multiple cars with us.

Our History and commitment to longevity, maintaining a safe and secure environment, with a relentless focus on customer service and our attention to the community are what's built the Peterson brand over the last 90 years.

With 10 brands and 5 locations in Boise, Meridian and Nampa, Peterson Auto Group stands out as the automotive dealer with integrity and honesty. It is our goal to truly satisfy the transportation needs of the families in our community and provide high quality service and care long after the sale is made.

Peterson Chevrolet Buick Cadillac

12300 W Fairview Ave, Boise, ID 83713


Have questions?

Just give us a call! (208) 323-5000 to inquire about New Chevrolet Buick and Cadillac models and our Used Inventory, Schedule a Service or Repair. Order Parts and Accessories.

Shopping online and have a quick question? Our trained Chat specialists may be available to assist you during normal business hours. Simply click the "Chat" button at the top right of our website.

About Peterson Chevrolet Buick Cadillac - Your Boise New and Used Car Dealership

At Peterson Chevrolet Buick Cadillac, we believe you should be as hassle free during the car shopping process as possible. Because we take pride in serving our customers to the fullest, we have established a web site that will not only help you find the right new car or used car in the Boise area that you are looking for, but also help you with financing, car repair and service and locating the correct car parts. If you can't find what you are looking for, be sure to use our CarFinder for assistance locating the perfect Chevrolet, Cadilllac or Buick vehicle for you. With the CarFinder, we will let you know when the vehicle arrives that matches your search.

We're here to answer every and all questions you might have during the car finding process. We are conveniently located near Nampa, Meridian and Caldwell ID at 12300 W Fairview Avenue, Boise, Idaho. You can also reach us anytime by filling out our contact form or calling us at the number above. Thank you for visiting and remember, the entire staff at Peterson Chevrolet Buick Cadillac looks forward to serving you!


Peterson Chevrolet Buick Cadillac

12300 W Fairview Avenue
Directions Boise, ID 83713

  • Sales: 208-576-7941
  • Service: (208) 323-5100
  • Parts: (208) 323-5050


  • Monday 9:00-8:00
  • Tuesday 9:00-8:00
  • Wednesday 9:00-8:00
  • Thursday 9:00-8:00
  • Friday 9:00-8:00
  • Saturday 9:00-7:00
  • Sunday Closed
Peterson Chevrolet Buick Cadillac in Boise Idaho.