Best GMC Dealerships in California, Ranked by CarEdge Data
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 29 GMC dealers across California; below are the top 20 by transparency score. One of them, Magic Gmc Cadillac, is CarEdge Certified. If you’re shopping a specific metro, jump to the city-by-city rankings below for a tighter local shortlist.
Last updated October 22, 2026. CarEdge refreshes these rankings daily as new verified out-the-door quotes come in.
What is the best GMC dealer in California?
The best GMC dealer in California by verified out-the-door price data is Caposio Buick Gmc (Victorville, CA): A grade, 100/100 across 8 verified quotes, with no dealer add-ons in any verified quote.
Close behind:
- Penske Buick Gmc (Cerritos), A grade, 100/100 across 6 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.
Best for:
- Lowest doc fee: Caposio Buick Gmc (Victorville), $85.
- No dealer add-ons: Caposio Buick Gmc (Victorville), none in any of its 8 verified quotes.
- Selling price under the listing: Simpson Buick Gmc (Buena Park), quotes average 7.1% below the advertised price.
- Most verified quotes: Fremont Buick Gmc (Fremont), 13 verified quotes behind its A.
Among the A and B dealers ranked on this page.
Full ranking, fees and add-on data for every graded dealer are below.
CarEdge Certified GMC Dealers in California
Magic Gmc Cadillac is the only CarEdge Certified GMC dealer in California. CarEdge Certified is a tier above a letter grade. Certified dealers hold an A grade on the CarEdge Dealer Transparency Index and guarantee four things on every deal:
- All-in out-the-door price up front
- No surprise add-ons
- Fast, real answers
- An honest, no-pressure experience
CarEdge verifies the guarantee with ongoing AI mystery shops, and a dealer that slips below an A grade loses the badge. Certification is earned from data, never bought.
Magic Gmc Cadillac: CarEdge Certified GMC dealer in Santa Clarita
Magic Gmc Cadillac in Santa Clarita, CA is CarEdge Certified. It holds an A grade on the CarEdge Dealer Transparency Index (98/100 across 9 verified out-the-door quotes) and guarantees an all-in out-the-door price up front, no surprise add-ons, fast, real answers, and an honest, no-pressure experience on every deal.
- Doc fee: $85 — at the CA average
- Add-ons disclosed in written quotes: 11% of quotes, avg $231
See Magic Gmc Cadillac’s grade and verified quotes →
See every CarEdge Certified dealer →
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 — Caposio Buick Gmc
Grade: A · Score: 100/100 · Victorville, CA
Caposio Buick Gmc is the top-graded GMC dealer in California by verified data — A grade, 100/100, based on 8 verified OTD quotes.
- Doc fee: $85 — at the CA average
- Add-ons: None detected in verified quotes
- Listing accuracy: 4.5% below the advertised listing
- Verified quotes: 8
See full review & verified quotes →
#2 — Penske Buick Gmc
Grade: A · Score: 100/100 · Cerritos, CA
Penske Buick Gmc adds zero dealer add-ons in any verified quote — rare for an A-grade GMC dealer.
- Doc fee: $85 — at the CA average
- Add-ons: None detected in verified quotes
- Listing accuracy: 1.6% below the advertised listing
- Verified quotes: 6
See full review & verified quotes →
#3 — Cuesta Gmc
Grade: A · Score: 100/100 · San Luis Obispo, CA
Cuesta Gmc quotes prices within 0.9% of the advertised listing — one of the cleanest pricing patterns on this list.
- Doc fee: $85 — at the CA average
- Add-ons: None detected in verified quotes
- Listing accuracy: 0.9% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#4 — North County Gmc
Grade: A · Score: 100/100 · Escondido, CA
North County Gmc quoted prices 2.6% below the advertised listing — the kind of discount that rewards getting the OTD in writing.
- Doc fee: $85 — at the CA average
- Add-ons: None detected in verified quotes
- Listing accuracy: 2.6% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#5 — Reliable Buick GMC Cadillac
Grade: A · Score: 100/100 · Roseville, CA
Verified quotes from Reliable Buick GMC Cadillac came in 4.3% under the advertised listing.
- Doc fee: $85 — at the CA average
- Add-ons: None detected in verified quotes
- Listing accuracy: 4.3% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#6 — 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 — at the CA average
- Add-ons: None detected in verified quotes
- Listing accuracy: 7.1% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#7 — Chavez Jessup Gmc
Grade: A · Score: 99/100 · Indio, CA
Chavez Jessup Gmc quoted prices 2.2% below the advertised listing — the kind of discount that rewards getting the OTD in writing.
- Doc fee: $85 — at the CA average
- Add-ons: None detected in verified quotes
- Listing accuracy: 2.2% below the advertised listing
- Verified quotes: 7
See full review & verified quotes →
#8 — Magic Gmc Cadillac
Grade: A · Score: 98/100 · CarEdge Certified · Santa Clarita, CA
Magic Gmc Cadillac is the only CarEdge Certified GMC dealer in California. Beyond its A grade (98/100 across 9 verified OTD quotes), it guarantees an all-in out-the-door price up front, no surprise add-ons, fast, real answers, and an honest, no-pressure experience, verified by ongoing CarEdge AI mystery shops.
- Doc fee: $85 — at the CA average
- Add-ons: 11% of quotes, avg $231
- Listing accuracy: 2.9% below the advertised listing
- Verified quotes: 9
- CarEdge Certified: Yes. Guarantee verified by ongoing CarEdge AI mystery shops. What CarEdge Certified means
See full review & verified quotes →
#9 — Watsonville Cadillac Gmc
Grade: A · Score: 98/100 · Watsonville, CA
Not one verified quote from Watsonville Cadillac Gmc carried a dealer add-on — a clean record at the A grade.
- Doc fee: $85 — at the CA average
- Add-ons: None detected in verified quotes
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#10 — Capitol Buick Gmc
Grade: A · Score: 96/100 · San Jose, CA
Capitol Buick Gmc keeps the F&I office out of it: no add-ons in any verified quote.
- Doc fee: $85 — at the CA average
- Add-ons: None detected in verified quotes
- Listing accuracy: 1.4% below the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#11 — North County Cadillac Gmc
Grade: A · Score: 96/100 · Escondido, CA
Verified quotes from North County Cadillac Gmc came in 2.9% under the advertised listing.
- Doc fee: $85 — at the CA average
- Add-ons: 20% of quotes, avg $279
- Listing accuracy: 2.9% below the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#12 — 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 — at the CA average
- Add-ons: None detected in verified quotes
- Listing accuracy: 2.4% above the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#13 — Fremont Buick Gmc
Grade: A · Score: 94/100 · Fremont, CA
Fremont Buick Gmc keeps add-ons on just 8% of verified quotes — light for an A-grade dealer.
- Doc fee: $236 — well above the CA average of $85
- Add-ons: 8% of quotes, avg $154
- Listing accuracy: 0.6% below the advertised listing
- Verified quotes: 13
See full review & verified quotes →
#14 — 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 — at the CA average
- Add-ons: 20% of quotes, avg $650
- Listing accuracy: 0.6% above the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#15 — Mataga Buick Gmc
Grade: B · Score: 89/100 · Stockton, CA
Mataga Buick Gmc earns a solid B on verified data — solid fundamentals. The one watch-out: add-ons show on 40% of quotes (avg $807).
- Doc fee: $111 — well above the CA average of $85
- Add-ons: 40% of quotes, avg $807
- Listing accuracy: 1.2% below the advertised listing
- Verified quotes: 10
See full review & verified quotes →
#16 — Hatfield Buick Gmc
Grade: B · Score: 89/100 · Redlands, CA
Hatfield Buick Gmc grades a B: a doc fee at or below the CA average, but quotes ran 2.0% over listing — ask for an itemized OTD.
- Doc fee: $85 — at the CA average
- Add-ons: 29% of quotes, avg $86
- Listing accuracy: 2.0% above the advertised listing
- Verified quotes: 7
See full review & verified quotes →
#17 — Hardin Buick Gmc
Grade: B · Score: 88/100 · Anaheim, CA
Hardin Buick Gmc keeps add-ons on just 8% of verified quotes — light for a B-grade dealer.
- Doc fee: $131 — well above the CA average of $85
- Add-ons: 8% of quotes, avg $307
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 12
See full review & verified quotes →
#18 — Costa Mesa Gmc
Grade: B · Score: 88/100 · Costa Mesa, CA
A B for Costa Mesa Gmc — a doc fee at or below the CA average. The watch-out: add-ons show on 50% of quotes (avg $710).
- Doc fee: $85 — at the CA average
- Add-ons: 50% of quotes, avg $710
- Listing accuracy: 6.1% below the advertised listing
- Verified quotes: 8
See full review & verified quotes →
#19 — Keller Motors
Grade: B · Score: 88/100 · Hanford, CA
Keller Motors 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 $1,173).
- Doc fee: $85 — at the CA average
- Add-ons: 50% of quotes, avg $1,173
- Listing accuracy: 1.1% above the advertised listing
- Verified quotes: 8
See full review & verified quotes →
#20 — Alfred Matthews Gmc
Grade: B · Score: 88/100 · Modesto, CA
Add-ons appear on 67% of verified quotes at Alfred Matthews Gmc, averaging $263 — the highest rate on this list. Ask for an itemized OTD before signing.
- Doc fee: $85 — at the CA average
- Add-ons: 67% of quotes, avg $263
- Listing accuracy: 1.4% below 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 San Francisco Bay
- Best GMC Dealerships in San Diego
- Best GMC Dealerships in Sacramento
- Best GMC Dealerships in Riverside-San Bernardino
- Best GMC Dealerships in San Jose
- Best GMC Dealerships in Modesto
- Best GMC Dealerships near Chico, CA
California GMC Dealer Rankings at a Glance
| # | Dealer | City | Grade | Score | Doc Fee | Add-Ons | Quotes |
|---|---|---|---|---|---|---|---|
| 1 | Caposio Buick Gmc | Victorville | A | 100 | $85 | $0 | 8 |
| 2 | Penske Buick Gmc | Cerritos | A | 100 | $85 | $0 | 6 |
| 3 | Cuesta Gmc | San Luis Obispo | A | 100 | $85 | $0 | 4 |
| 4 | North County Gmc | Escondido | A | 100 | $85 | $0 | 4 |
| 5 | Reliable Buick GMC Cadillac | Roseville | A | 100 | $85 | $0 | 4 |
| 6 | Simpson Buick Gmc | Buena Park | A | 100 | $85 | $0 | 4 |
| 7 | Chavez Jessup Gmc | Indio | A | 99 | $85 | $0 | 7 |
| 8 | Magic Gmc Cadillac (CarEdge Certified) | Santa Clarita | A | 98 | $85 | $231 | 9 |
| 9 | Watsonville Cadillac Gmc | Watsonville | A | 98 | $85 | $0 | 5 |
| 10 | Capitol Buick Gmc | San Jose | A | 96 | $85 | $0 | 5 |
| 11 | North County Cadillac Gmc | Escondido | A | 96 | $85 | $279 | 5 |
| 12 | Gmc Of Vacaville | Vacaville | A | 95 | $85 | $0 | 4 |
| 13 | Fremont Buick Gmc | Fremont | A | 94 | $236 | $154 | 13 |
| 14 | Temecula Valley Buick Gmc | Temecula | A | 91 | $85 | $650 | 5 |
| 15 | Mataga Buick Gmc | Stockton | B | 89 | $111 | $807 | 10 |
| 16 | Hatfield Buick Gmc | Redlands | B | 89 | $85 | $86 | 7 |
| 17 | Hardin Buick Gmc | Anaheim | B | 88 | $131 | $307 | 12 |
| 18 | Costa Mesa Gmc | Costa Mesa | B | 88 | $85 | $710 | 8 |
| 19 | Keller Motors | Hanford | B | 88 | $85 | $1,173 | 8 |
| 20 | Alfred Matthews Gmc | Modesto | B | 88 | $85 | $263 | 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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