Best GMC Dealerships in Chicago, Ranked by CarEdge Data

This is the CarEdge Dealer Transparency Index ranking for GMC dealers in the Chicago metro. We graded every GMC dealer in the area with enough verified out-the-door quotes to score with confidence — using real PDFs, emails, and signed deals, not Google star ratings.

10 GMC dealers in Chicago currently clear the data threshold. Here’s how they rank.

Last updated November 11, 2026. CarEdge refreshes these rankings daily as new verified out-the-door quotes come in.

What is the best GMC dealer in Chicago?

The best GMC dealer in Chicago by verified out-the-door price data is Woody Buick Gmc Of Naperville (Naperville, IL): A grade, 100/100 across 15 quotes from the past year, with 15 quotes from the past year behind the grade.

Close behind:

2. Woody Buick Gmc Of Gurnee (Gurnee), A grade, 97/100 across 14 quotes from the past year, with 14 quotes from the past year behind the grade.
3. Mike Haggerty Buick Gmc (Oak Lawn), A grade, 97/100 across 6 quotes from the past year, with 6 quotes from the past year behind the grade.

Best for:

• Most quotes, past year: Woody Buick Gmc Of Naperville (Naperville), 15 quotes from the past year behind its A.

Among the A and B dealers ranked on this page.

Full ranking, dealer fees and quoted add-ons for every graded dealer are below.

Top 10 GMC Dealers in Chicago

Ranked by CarEdge transparency score, highest to lowest. Each dealer profile links to the full review with verified out-the-door quotes.

#1 — Woody Buick Gmc Of Naperville

Grade: A · Score: 100/100 · Naperville, IL

Woody Buick Gmc Of Naperville is the top-graded GMC dealer in the Chicago metro by verified data — A grade, 100/100, based on 15 quotes from the past year.

• Quotes, past year: 15

See full review & verified quotes →

#2 — Woody Buick Gmc Of Gurnee

Grade: A · Score: 97/100 · Gurnee, IL

Woody Buick Gmc Of Gurnee earns an A-grade on the CarEdge Dealer Transparency Index, based on 14 quotes from the past year.

• Quotes, past year: 14

See full review & verified quotes →

#3 — Mike Haggerty Buick Gmc

Grade: A · Score: 97/100 · Oak Lawn, IL

Mike Haggerty Buick Gmc earns an A-grade on the CarEdge Dealer Transparency Index, based on 6 quotes from the past year.

• Quotes, past year: 6

See full review & verified quotes →

#4 — Castle Buick Gmc

Grade: A · Score: 96/100 · North Riverside, IL

Castle Buick Gmc earns an A-grade on the CarEdge Dealer Transparency Index, based on 7 quotes from the past year.

• Quotes, past year: 7

See full review & verified quotes →

#5 — Napleton Buick Gmc Crystal Lake

Grade: A · Score: 95/100 · Crystal Lake, IL

Napleton Buick Gmc Crystal Lake earns an A-grade on the CarEdge Dealer Transparency Index, based on 4 quotes from the past year.

• Quotes, past year: 4

See full review & verified quotes →

#6 — Arlington Heights Buick Gmc

Grade: A · Score: 94/100 · Arlington Heights, IL

Arlington Heights Buick Gmc earns an A-grade on the CarEdge Dealer Transparency Index, based on 9 quotes from the past year.

• Quotes, past year: 9

See full review & verified quotes →

#7 — Al Piemonte Buick Gmc

Grade: A · Score: 93/100 · Elmhurst, IL

Al Piemonte Buick Gmc earns an A-grade on the CarEdge Dealer Transparency Index, based on 5 quotes from the past year.

• Quotes, past year: 5

See full review & verified quotes →

#8 — Napleton Auto Group

Grade: A · Score: 90/100 · Libertyville, IL

Napleton Auto Group earns an A-grade on the CarEdge Dealer Transparency Index, based on 6 quotes from the past year.

• Quotes, past year: 6

See full review & verified quotes →

#9 — Bill Kay Buick Gmc

Grade: B · Score: 87/100 · Downers Grove, IL

Bill Kay Buick Gmc earns a solid B on verified data — solid fundamentals.

• Quotes, past year: 5

See full review & verified quotes →

#10 — Arnie Bauer Cadillac Buick Gmc

Grade: B · Score: 80/100 · Matteson, IL

Arnie Bauer Cadillac Buick Gmc grades a B: solid fundamentals.

• Quotes, past year: 5

See full review & verified quotes →

Limited Data

These GMC dealers in the Chicago metro have verified OTD data, but not yet enough quotes from the past year to rank. We’re actively collecting more quotes for these dealers.

• Advantage Buick Gmc (Hodgkins, IL) — based on 3 quotes from the past year. View dealer page
• Castle Gmc Mchenry (McHenry, IL) — based on 1 quote from the past year. View dealer page
• Palmen Auto Stores (Kenosha, WI) — based on 1 quote from the past year. View dealer page
• Schepel Buick Gmc (Merrillville, IN) — based on 1 quote from the past year. View dealer page
• Castle Cars (North Riverside, IL) — based on 1 quote from the past year. View dealer page
• Fox Valley Gmc (St. Charles, IL) — based on 3 quotes from the past year. View dealer page
• Coffman Gmc (Montgomery, IL) — based on 2 quotes from the past year. View dealer page
• Murgado Automotive Group (Chicago, IL) — based on 3 quotes from the past year. View dealer page
• Currie Motors Buick Gmc (Valparaiso, IN) — based on 1 quote from the past year. View dealer page
• D’arcy Buick-Gmc (Joliet, IL) — based on 1 quote from the past year. View dealer page
• Arnie Bauer Gmc (Wilmington, IL) — based on 1 quote from the past year. View dealer page
• Zeigler Auto Group (Orland Park, IL) — based on 1 quote from the past year. View dealer page
• Palmen Buick Gmc Cadillac (Kenosha, WI) — based on 1 quote from the past year. View dealer page

About the CarEdge Dealer Transparency Index

Most dealer rankings come from Google star ratings and Yelp reviews — easy to game, impossible to verify. The CarEdge Dealer Transparency Index is different. We score every dealer using verified out-the-door quotes: real PDFs, emails, and screenshots from actual transactions.

Only quotes from the past year count. We split them into four groups, newest first: the newest counts 50%, then 30%, 15% and 5%.

Each dealer’s transparency score (out of 100) is weighted across four dimensions:

• Fee Transparency (30%) — Are the dealer’s fees reasonable? We add up every dealer fee and compare the total with the state median.
• Add-on Behavior (30%) — How often does the dealer include quoted add-ons like paint protection or theft deterrent, the kind you can’t say no to? Add-ons the dealer marks as optional don’t count against them.
• Price Accuracy (30%) — Does the advertised price include every charge you have to pay? We check each quote against the vehicle page: dealer fees, add-ons, the advertised price and the discount.
• Data Quality (10%) — Does the quote list taxes, dealer fees, add-ons and government fees each on its own line? Each one is worth a quarter.

Grades: A (90–100), B (80–89), C (70–79), D (60–69), F (below 60). Read the methodology →

Chicago GMC Dealer Rankings at a Glance

#	Dealer	City	Grade	Score	Dealer Fees	Quoted Add-ons	Quotes, Past Year
1	Woody Buick Gmc Of Naperville	Naperville	A	100	—	—	15
2	Woody Buick Gmc Of Gurnee	Gurnee	A	97	—	—	14
3	Mike Haggerty Buick Gmc	Oak Lawn	A	97	—	—	6
4	Castle Buick Gmc	North Riverside	A	96	—	—	7
5	Napleton Buick Gmc Crystal Lake	Crystal Lake	A	95	—	—	4
6	Arlington Heights Buick Gmc	Arlington Heights	A	94	—	—	9
7	Al Piemonte Buick Gmc	Elmhurst	A	93	—	—	5
8	Napleton Auto Group	Libertyville	A	90	—	—	6
9	Bill Kay Buick Gmc	Downers Grove	B	87	—	—	5
10	Arnie Bauer Cadillac Buick Gmc	Matteson	B	80	—	—	5

For the live list, including dealers graded since this page last updated, see the live GMC dealer rankings near Chicago on the CarEdge Dealer Transparency Index.

Compare GMC Dealers in Other Metros

CarEdge has graded GMC dealers in 36 US metros using verified out-the-door quotes. Compare other markets:

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How to Use This Data When You Shop

1. Get an OTD quote in writing before you visit. Any dealer can send a worksheet by email — if they won’t, that’s a red flag.
2. Ask for a quote with zero add-ons. Everything in the F&I office is optional. Say “please remove all dealer add-ons” and see what the price does.
3. Anchor to the OTD, not the advertised price. Dealers with a gap between advertised price and final OTD aren’t being straight with you. Don’t negotiate off the advertised number.
4. Compare three dealers minimum. Even within the same metro, dealer fees, quoted add-ons and advertised price accuracy vary widely. Use this ranking as your shortlist.

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Rankings are generated from the CarEdge Dealer Transparency Index, a public methodology that scores dealers on verified out-the-door quotes — not Google star ratings or paid placements. CarEdge refreshes the rankings daily as new verified quotes come in.