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.

7 GMC dealers in Chicago cleared the data threshold this quarter. Here’s how they rank.

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.

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

• Fee Transparency (30%) — Is the doc fee reasonable compared to the state average?
• Add-on Behavior (30%) — How often does the dealer bundle add-ons, and at what cost?
• Price Accuracy (30%) — Does the listing price match the actual OTD price?
• Data Quality (10%) — More verified quotes mean higher confidence in the grade.

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

Top 7 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, Inc.

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

Woody Buick-Gmc, Inc. is the top-graded GMC dealer in the Chicago metro by verified data — A grade, 100/100, based on 4 verified OTD quotes.

• Doc fee: $377 — below the IL average of $387
• Add-ons: None detected in verified quotes
• Listing accuracy: 10.4% below the advertised listing
• Verified quotes: 4

See full review & verified quotes →

#2 — Napleton Buick Gmc Crystal Lake

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

Napleton Buick Gmc Crystal Lake quoted prices 9.5% below the advertised listing — the kind of discount that rewards getting the OTD in writing.

• Doc fee: $373 — below the IL average of $387
• Add-ons: None detected in verified quotes
• Listing accuracy: 9.5% below the advertised listing
• Verified quotes: 4

See full review & verified quotes →

#3 — Woody Buick Gmc Of Gurnee

Grade: A · Score: 98/100 · Gurnee, IL

Woody Buick Gmc Of Gurnee earns the A grade with 56 verified OTD quotes — one of the deepest datasets on this list.

• Doc fee: $363 — below the IL average of $387
• Add-ons: 9% of quotes, avg $124
• Listing accuracy: 3.6% below the advertised listing
• Verified quotes: 56

See full review & verified quotes →

#4 — Arnie Bauer Buick Gmc Cadillac

Grade: A · Score: 97/100 · Matteson, IL

Arnie Bauer Buick Gmc Cadillac adds zero dealer add-ons in any verified quote — rare for an A-grade GMC dealer.

• Doc fee: $405 — above the IL average of $387
• Add-ons: None detected in verified quotes
• Listing accuracy: 0.9% above the advertised listing
• Verified quotes: 6

See full review & verified quotes →

#5 — Palmen Buick Gmc Cadillac Inc.

Grade: A · Score: 95/100 · Kenosha, IL

Verified quotes from Palmen Buick Gmc Cadillac Inc. came in 4.6% under the advertised listing.

• Doc fee: $516 — well above the IL average of $424
• Add-ons: 17% of quotes, avg $433
• Listing accuracy: 4.6% below the advertised listing
• Verified quotes: 6

See full review & verified quotes →

#6 — Arlington Heights Buick Gmc

Grade: A · Score: 91/100 · Arlington Heights, IL

Arlington Heights Buick Gmc quotes prices within 0.6% of the advertised listing — one of the cleanest pricing patterns on this list.

• Doc fee: $370 — below the IL average of $387
• Add-ons: 50% of quotes, avg $460
• Listing accuracy: 0.6% above the advertised listing
• Verified quotes: 14

See full review & verified quotes →

#7 — Al Piemonte Buick Gmc

Grade: C · Score: 73/100 · Elmhurst, IL

Al Piemonte Buick Gmc grades a C — add-ons appear on 100% of verified quotes, averaging $2,875. Ask for an itemized OTD before signing.

• Doc fee: $374 — below the IL average of $387
• Add-ons: 100% of quotes, avg $2,875
• Listing accuracy: 4.3% above the advertised listing
• Verified quotes: 5

See full review & verified quotes →

Limited Data

These GMC dealers in the Chicago metro have verified OTD data, but not yet enough to assign a confident grade. We’re actively collecting more quotes for these dealers.

• Castle Mchenry (McHenry, IL) — based on 3 verified OTD quotes. View dealer page
• Bill Kay Buick Gmc (Downers Grove, IL) — based on 3 verified OTD quotes. View dealer page
• Castle Buick-Gmc, Inc. (North Riverside, IL) — based on 3 verified OTD quotes. View dealer page
• Castle Buick Gmc Of North Riverside (North Riverside, IL) — based on 1 verified OTD quote. View dealer page
• Fox Valley Gmc (St. Charles, IL) — based on 3 verified OTD quotes. View dealer page
• Mike Haggerty Buick Gmc (Oak Lawn, IL) — based on 1 verified OTD quote. View dealer page
• D’Arcy Buick Gmc (Joliet, IL) — based on 1 verified OTD quote. View dealer page
• Palmen Buick Gmc Cadillac (Kenosha, IL) — based on 0 verified OTD quotes. View dealer page
• Napleton Auto Group (Libertyville, IL) — based on 0 verified OTD quotes. View dealer page

Chicago GMC Dealer Rankings at a Glance

#	Dealer	City	Grade	Score	Doc Fee	Add-Ons	Quotes
1	Woody Buick-Gmc, Inc.	Naperville	A	100	$377	$0	4
2	Napleton Buick Gmc Crystal Lake	Crystal Lake	A	100	$373	$0	4
3	Woody Buick Gmc Of Gurnee	Gurnee	A	98	$363	$124	56
4	Arnie Bauer Buick Gmc Cadillac	Matteson	A	97	$405	$0	6
5	Palmen Buick Gmc Cadillac Inc.	Kenosha	A	95	$516	$433	6
6	Arlington Heights Buick Gmc	Arlington Heights	A	91	$370	$460	14
7	Al Piemonte Buick Gmc	Elmhurst	C	73	$374	$2,875	5

These rankings are a quarterly snapshot. For the continuously updated list — including dealers rated since this article was published — 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 14 US metros using verified out-the-door quotes. Compare other markets:

• Best GMC Dealerships in Phoenix
• Best GMC Dealerships in Dallas-Fort Worth
• Best GMC Dealerships in Los Angeles
• Best GMC Dealerships in Washington DC
• Best GMC Dealerships in Seattle
• Best GMC Dealerships in Denver
• Best GMC Dealerships in New York City
• Best GMC Dealerships in Tampa
• Best GMC Dealerships in Austin
• Best GMC Dealerships in Orlando
• Best GMC Dealerships in Raleigh-Durham
• Best GMC Dealerships in Baltimore
• Best GMC Dealerships in Milwaukee

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 listing. Dealers with a gap between advertised price and final OTD aren’t being straight with you. Don’t negotiate off the listing number.
4. Compare three dealers minimum. Even within the same metro, doc fees, add-on policies, and listing 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. Data updated quarterly. Last updated: Q3 2026.