Best GMC Dealerships in California, Ranked by CarEdge Data
Key Takeaways
- Top 20 GMC dealers in California from 24 graded statewide, ranked using verified out-the-door quotes — not Google star ratings.
- Penske Buick Gmc (Cerritos) is the highest-graded GMC dealer in California.
- Lehmer's Concord Gmc (Concord) carries the main watch-out — add-ons appear on 71% of verified quotes, averaging $796 — the highest rate here.
- Get an OTD quote in writing before you visit any dealer. CarEdge tracks real prices, not advertised ones.
This is the CarEdge Dealer Transparency Index ranking for GMC dealers across California. We grade dealers using verified out-the-door quotes — real PDFs, emails, and signed deals — not Google star ratings.
We graded 24 GMC dealers across California; below are the top 20 by transparency score. If you’re shopping a specific metro, jump to the city-by-city rankings below for a tighter local shortlist.
Last updated October 1, 2026. CarEdge refreshes these rankings daily as new verified out-the-door quotes come in.
The Best GMC Dealers in California
The best GMC dealer in California by verified out-the-door price data is Penske Buick Gmc (Cerritos, CA): A grade, 100/100 across 6 verified quotes, with no dealer add-ons in any verified quote.
Close behind:
- Caposio Buick Gmc (Victorville), A grade, 100/100 across 4 verified quotes, with no dealer add-ons in any verified quote.
- Cuesta Gmc (San Luis Obispo), A grade, 100/100 across 4 verified quotes, with no dealer add-ons in any verified quote.
Full ranking, fees and add-on data for every graded dealer are below.
Top 20 GMC Dealers in California
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 California by verified data — A grade, 100/100, based on 6 verified OTD quotes.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: None detected in verified quotes
- Listing accuracy: 1.6% below the advertised listing
- Verified quotes: 6
See full review & verified quotes →
#2 — Caposio Buick Gmc
Grade: A · Score: 100/100 · Victorville, CA
Caposio Buick Gmc quoted prices 2.9% below the advertised listing — the kind of discount that rewards getting the OTD in writing.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: None detected in verified quotes
- Listing accuracy: 2.9% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#3 — Cuesta Gmc
Grade: A · Score: 100/100 · San Luis Obispo, CA
Cuesta Gmc adds zero dealer add-ons in any verified quote — rare for an A-grade GMC dealer.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: None detected in verified quotes
- Listing accuracy: 0.9% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#4 — Reliable Buick GMC Cadillac
Grade: A · Score: 100/100 · Roseville, CA
Verified quotes from Reliable Buick GMC Cadillac came in 4.4% under the advertised listing.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: None detected in verified quotes
- Listing accuracy: 4.4% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#5 — Simpson Buick Gmc
Grade: A · Score: 100/100 · Buena Park, CA
Simpson Buick Gmc priced 7.1% below its own listings on verified deals — a rare direction for the gap to run.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: None detected in verified quotes
- Listing accuracy: 7.1% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#6 — Chavez Jessup Gmc
Grade: A · Score: 99/100 · Indio, CA
Not one verified quote from Chavez Jessup Gmc carried a dealer add-on — a clean record at the A grade.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: None detected in verified quotes
- Listing accuracy: 1.5% below the advertised listing
- Verified quotes: 7
See full review & verified quotes →
#7 — Watsonville Cadillac Gmc
Grade: A · Score: 98/100 · Watsonville, CA
Watsonville Cadillac Gmc quotes prices within 0.0% of the advertised listing — one of the cleanest pricing patterns on this list.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: None detected in verified quotes
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#8 — North County Cadillac Gmc
Grade: A · Score: 96/100 · Escondido, CA
North County Cadillac Gmc quoted prices 2.9% below the advertised listing — the kind of discount that rewards getting the OTD in writing.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: 20% of quotes, avg $279
- Listing accuracy: 2.9% below the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#9 — Magic Gmc Cadillac
Grade: A · Score: 95/100 · Santa Clarita, CA
Magic Gmc Cadillac keeps add-ons on just 14% of verified quotes — light for an A-grade dealer.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: 14% of quotes, avg $297
- Listing accuracy: 1.4% below the advertised listing
- Verified quotes: 7
See full review & verified quotes →
#10 — Gmc Of Vacaville
Grade: A · Score: 95/100 · Vacaville, CA
Gmc Of Vacaville adds zero dealer add-ons in any verified quote — rare for an A-grade GMC dealer.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: None detected in verified quotes
- Listing accuracy: 2.4% above the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#11 — Elk Grove Buick Gmc
Grade: A · Score: 94/100 · Elk Grove, CA
Elk Grove Buick Gmc keeps add-ons on just 20% of verified quotes — light for an A-grade dealer.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: 20% of quotes, avg $278
- Listing accuracy: 1.7% below the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#12 — Temecula Valley Buick Gmc
Grade: A · Score: 91/100 · Temecula, CA
Add-ons showed on only 20% of Temecula Valley Buick Gmc’s verified quotes — restrained by segment standards.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: 20% of quotes, avg $650
- Listing accuracy: 0.6% above the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#13 — Hardin Buick Gmc
Grade: A · Score: 90/100 · Anaheim, CA
Hardin Buick Gmc keeps add-ons on just 8% of verified quotes — light for an A-grade dealer.
- Doc fee: $130 — above the CA average of $110
- Add-ons: 8% of quotes, avg $307
- Listing accuracy: 1.5% above the advertised listing
- Verified quotes: 12
See full review & verified quotes →
#14 — Costa Mesa Gmc
Grade: B · Score: 88/100 · 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 50% of quotes (avg $710).
- Doc fee: $85 — well below the CA average of $110
- Add-ons: 50% of quotes, avg $710
- Listing accuracy: 5.5% below the advertised listing
- Verified quotes: 8
See full review & verified quotes →
#15 — Keller Motors
Grade: B · Score: 88/100 · Hanford, CA
Keller Motors grades a B: a doc fee at or below the CA average, but add-ons show on 50% of quotes (avg $1,173) — ask for an itemized OTD.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: 50% of quotes, avg $1,173
- Listing accuracy: 1.3% above the advertised listing
- Verified quotes: 8
See full review & verified quotes →
#16 — Hatfield Buick Gmc
Grade: B · Score: 87/100 · Redlands, CA
A B for Hatfield Buick Gmc — a doc fee at or below the CA average. The watch-out: add-ons show on 33% of quotes (avg $100).
- Doc fee: $85 — well below the CA average of $110
- Add-ons: 33% of quotes, avg $100
- Listing accuracy: 2.3% above the advertised listing
- Verified quotes: 6
See full review & verified quotes →
#17 — Mataga Buick Gmc
Grade: B · Score: 86/100 · Stockton, CA
Mataga Buick Gmc earns a solid B on verified data — solid fundamentals. The one watch-out: add-ons show on 57% of quotes (avg $1,153).
- Doc fee: $121 — above the CA average of $110
- Add-ons: 57% of quotes, avg $1,153
- Listing accuracy: 1.2% below the advertised listing
- Verified quotes: 7
See full review & verified quotes →
#18 — Alexander Gmc Of Simi Valley
Grade: B · Score: 84/100 · Simi Valley, CA
Alexander Gmc Of Simi Valley grades a B: a doc fee at or below the CA average, but add-ons show on 46% of quotes (avg $1,106) — ask for an itemized OTD.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: 46% of quotes, avg $1,106
- Listing accuracy: 2.2% above the advertised listing
- Verified quotes: 11
See full review & verified quotes →
#19 — Lehmer’s Concord Gmc
Grade: B · Score: 84/100 · Concord, CA
A B for Lehmer’s Concord Gmc — a doc fee at or below the CA average. The watch-out: add-ons show on 71% of quotes (avg $796).
- Doc fee: $85 — well below the CA average of $110
- Add-ons: 71% of quotes, avg $796
- Listing accuracy: 1.9% above the advertised listing
- Verified quotes: 7
See full review & verified quotes →
#20 — Premier Buick Gmc Of Carlsbad
Grade: B · Score: 80/100 · Carlsbad, CA
Add-ons appear on 50% of verified quotes at Premier Buick Gmc Of Carlsbad, averaging $1,106 — the highest rate on this list. Ask for an itemized OTD before signing.
- Doc fee: $85 — well below the CA average of $110
- Add-ons: 50% of quotes, avg $1,106
- Listing accuracy: 1.2% above the advertised listing
- Verified quotes: 6
See full review & verified quotes →
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).
GMC Dealers by Metro in California
Shopping a specific city? These metro-level rankings drill into GMC dealers near each major California market:
- Best GMC Dealerships in Los Angeles
- Best GMC Dealerships in Sacramento
- Best GMC Dealerships in Riverside-San Bernardino
- Best GMC Dealerships in Stockton
California 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 | Caposio Buick Gmc | Victorville | A | 100 | $85 | $0 | 4 |
| 3 | Cuesta Gmc | San Luis Obispo | A | 100 | $85 | $0 | 4 |
| 4 | Reliable Buick GMC Cadillac | Roseville | A | 100 | $85 | $0 | 4 |
| 5 | Simpson Buick Gmc | Buena Park | A | 100 | $85 | $0 | 4 |
| 6 | Chavez Jessup Gmc | Indio | A | 99 | $85 | $0 | 7 |
| 7 | Watsonville Cadillac Gmc | Watsonville | A | 98 | $85 | $0 | 5 |
| 8 | North County Cadillac Gmc | Escondido | A | 96 | $85 | $279 | 5 |
| 9 | Magic Gmc Cadillac | Santa Clarita | A | 95 | $85 | $297 | 7 |
| 10 | Gmc Of Vacaville | Vacaville | A | 95 | $85 | $0 | 4 |
| 11 | Elk Grove Buick Gmc | Elk Grove | A | 94 | $85 | $278 | 5 |
| 12 | Temecula Valley Buick Gmc | Temecula | A | 91 | $85 | $650 | 5 |
| 13 | Hardin Buick Gmc | Anaheim | A | 90 | $130 | $307 | 12 |
| 14 | Costa Mesa Gmc | Costa Mesa | B | 88 | $85 | $710 | 8 |
| 15 | Keller Motors | Hanford | B | 88 | $85 | $1,173 | 8 |
| 16 | Hatfield Buick Gmc | Redlands | B | 87 | $85 | $100 | 6 |
| 17 | Mataga Buick Gmc | Stockton | B | 86 | $121 | $1,153 | 7 |
| 18 | Alexander Gmc Of Simi Valley | Simi Valley | B | 84 | $85 | $1,106 | 11 |
| 19 | Lehmer’s Concord Gmc | Concord | B | 84 | $85 | $796 | 7 |
| 20 | Premier Buick Gmc Of Carlsbad | Carlsbad | B | 80 | $85 | $1,106 | 6 |
How to Use This Data When You Shop
- 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.
- 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.
- 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.
- 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.
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.
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