Best GMC Dealerships in Portland, Ranked by CarEdge Data

This is the CarEdge Dealer Transparency Index ranking for GMC dealers in the Portland 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.

4 GMC dealers in Portland cleared the data threshold this quarter. It’s a smaller field — 3 more GMC dealers are tracked below but do not yet have enough verified quotes to grade — so treat this as a focused shortlist and still gather your own quotes. 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 4 GMC Dealers in Portland

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

#1 — Royal Moore Buick Gmc Inc

Grade: A · Score: 99/100 · Hillsboro, OR

Royal Moore Buick Gmc Inc is the top-graded GMC dealer in the Portland metro by verified data — A grade, 99/100, based on 4 verified OTD quotes.

• Doc fee: $250 — above the OR average of $231
• Add-ons: None detected in verified quotes
• Listing accuracy: 5.0% below the advertised listing
• Verified quotes: 4

See full review & verified quotes →

#2 — Carr Vancouver Buick Gmc

Grade: A · Score: 94/100 · Vancouver, OR

Carr Vancouver Buick Gmc quotes prices within 0.5% of the advertised listing — one of the cleanest pricing patterns on this list.

• Doc fee: $200 — below the OR average of $210
• Add-ons: 33% of quotes, avg $133
• Listing accuracy: 0.5% below the advertised listing
• Verified quotes: 9

See full review & verified quotes →

#3 — Carr Buick Gmc

Grade: A · Score: 91/100 · Vancouver, OR

Carr Buick Gmc quoted prices 5.8% below the advertised listing — the kind of discount that rewards getting the OTD in writing.

• Doc fee: $114 — well below the OR average of $210
• Add-ons: 29% of quotes, avg $211
• Listing accuracy: 5.8% below the advertised listing
• Verified quotes: 7

See full review & verified quotes →

#4 — Buick Gmc Of Beaverton

Grade: C · Score: 77/100 · Portland, OR

Buick Gmc Of Beaverton grades a C — add-ons appear on 50% of verified quotes, averaging $4,704. Ask for an itemized OTD before signing.

• Doc fee: $100 — well below the OR average of $231
• Add-ons: 50% of quotes, avg $4,704
• Listing accuracy: 0.7% above the advertised listing
• Verified quotes: 4

See full review & verified quotes →

Limited Data

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

• Autotown Gmc (Gladstone, OR) — based on 2 verified OTD quotes. View dealer page
• Carr Auto Group (Beaverton, OR) — based on 0 verified OTD quotes. View dealer page
• Weston Buick Gmc, Inc. (Gresham, OR) — based on 0 verified OTD quotes. View dealer page

Portland GMC Dealer Rankings at a Glance

#	Dealer	City	Grade	Score	Doc Fee	Add-Ons	Quotes
1	Royal Moore Buick Gmc Inc	Hillsboro	A	99	$250	$0	4
2	Carr Vancouver Buick Gmc	Vancouver	A	94	$200	$133	9
3	Carr Buick Gmc	Vancouver	A	91	$114	$211	7
4	Buick Gmc Of Beaverton	Portland	C	77	$100	$4,704	4

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 Portland on the CarEdge Dealer Transparency Index.

Compare GMC Dealers in Other Metros

CarEdge has graded GMC dealers in 29 US metros using verified out-the-door quotes. Compare other markets:

• Best GMC Dealerships in Phoenix
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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 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.