Best GMC Dealerships in Los Angeles, Ranked by CarEdge Data

This is the CarEdge Dealer Transparency Index ranking for GMC dealers in the Los Angeles 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 Los Angeles 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 Los Angeles

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

#1 — Penske Buick Gmc

Grade: A · Score: 100/100 · Cerritos, CA

Penske Buick Gmc is the top-graded GMC dealer in the Los Angeles metro by verified data — A grade, 100/100, based on 6 verified OTD quotes.

• Doc fee: $85 — well below the CA average of $116
• Add-ons: None detected in verified quotes
• Listing accuracy: 2.3% below the advertised listing
• Verified quotes: 6

See full review & verified quotes →

#2 — Magic Gmc Cadillac

Grade: A · Score: 96/100 · Santa Clarita, CA

Magic Gmc Cadillac quoted prices 2.7% below the advertised listing — the kind of discount that rewards getting the OTD in writing.

• Doc fee: $85 — well below the CA average of $116
• Add-ons: 22% of quotes, avg $462
• Listing accuracy: 2.7% below the advertised listing
• Verified quotes: 9

See full review & verified quotes →

#3 — Martin Chevrolet

Grade: B · Score: 84/100 · Torrance, CA

Martin Chevrolet’s $61 doc fee comes in well below the CA average of $116 — money that stays in your pocket at signing.

• Doc fee: $61 — well below the CA average of $116
• Add-ons: 57% of quotes, avg $910
• Listing accuracy: 9.5% below the advertised listing
• Verified quotes: 7

See full review & verified quotes →

#4 — Costa Mesa Gmc

Grade: B · Score: 82/100 · Costa Mesa, CA

Costa Mesa Gmc earns a solid B on verified data — a doc fee at or below the CA average. The one watch-out: add-ons show on 67% of quotes (avg $1,645).

• Doc fee: $86 — well below the CA average of $116
• Add-ons: 67% of quotes, avg $1,645
• Listing accuracy: 2.0% above the advertised listing
• Verified quotes: 6

See full review & verified quotes →

#5 — Hardin Buick Gmc

Grade: C · Score: 78/100 · Anaheim, CA

Hardin Buick Gmc grades a C — add-ons appear on 60% of verified quotes, averaging $1,314. Ask for an itemized OTD before signing.

• Doc fee: $0 — well below the CA average of $116
• Add-ons: 60% of quotes, avg $1,314
• Listing accuracy: 4.5% below the advertised listing
• Verified quotes: 5

See full review & verified quotes →

#6 — Alexander Gmc Of Simi Valley

Grade: C · Score: 78/100 · Simi Valley, CA

Alexander Gmc Of Simi Valley grades a C — add-ons appear on 75% of verified quotes, averaging $1,582. Ask for an itemized OTD before signing.

• Doc fee: $64 — well below the CA average of $116
• Add-ons: 75% of quotes, avg $1,582
• Listing accuracy: Quoted price matches the advertised listing
• Verified quotes: 8

See full review & verified quotes →

#7 — Tustin Buick Gmc

Grade: D · Score: 64/100 · Tustin, CA

Tustin Buick Gmc carries the heaviest warnings on this list — add-ons appear on 100% of verified quotes, averaging $4,306, and quoted prices run 6.7% above the advertised listing. Anchor to the OTD, not the sticker.

• Doc fee: $85 — well below the CA average of $116
• Add-ons: 100% of quotes, avg $4,306
• Listing accuracy: 6.7% above the advertised listing
• Verified quotes: 9

See full review & verified quotes →

Limited Data

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

• Simpson Buick Gmc (Buena Park, CA) — based on 3 verified OTD quotes. View dealer page
• Boulevard Buick/Gmc (Signal Hill, CA) — based on 2 verified OTD quotes. View dealer page
• Penske Cadillac Buick Gmc South Bay (Torrance, CA) — based on 2 verified OTD quotes. View dealer page
• Laguna Niguel Gmc (Laguna Niguel, CA) — based on 1 verified OTD quote. View dealer page
• Av Gmc Cadillac (Palmdale, CA) — based on 1 verified OTD quote. View dealer page
• Palmdale Auto Mall (Palmdale, CA) — based on 0 verified OTD quotes. View dealer page
• Mark Christopher Auto Center (Ontario, CA) — based on 0 verified OTD quotes. View dealer page
• Cerritos Auto Square (Cerritos, CA) — based on 0 verified OTD quotes. View dealer page
• Buick Gmc Sherman Oaks (Los Angeles, CA) — based on 0 verified OTD quotes. View dealer page
• Magic GMC (Santa Clarita, CA) — based on 0 verified OTD quotes. View dealer page

Los Angeles GMC Dealer Rankings at a Glance

#	Dealer	City	Grade	Score	Doc Fee	Add-Ons	Quotes
1	Penske Buick Gmc	Cerritos	A	100	$85	$0	6
2	Magic Gmc Cadillac	Santa Clarita	A	96	$85	$462	9
3	Martin Chevrolet	Torrance	B	84	$61	$910	7
4	Costa Mesa Gmc	Costa Mesa	B	82	$86	$1,645	6
5	Hardin Buick Gmc	Anaheim	C	78	$0	$1,314	5
6	Alexander Gmc Of Simi Valley	Simi Valley	C	78	$64	$1,582	8
7	Tustin Buick Gmc	Tustin	D	64	$85	$4,306	9

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 Los Angeles 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 Chicago
• 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.