Best Car Dealerships in Rockford, Ranked by CarEdge Data
Key Takeaways
- The top 15 car dealerships in Rockford across all brands, ranked by CarEdge on verified out-the-door quotes — not star ratings.
- Biggers Mazda (Mazda, Elgin) is the most transparent dealership in the Rockford metro by verified data.
- Brand-by-brand rankings are linked below if you already know what you're shopping.
- 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 car dealerships in the Rockford metro — every brand, scored on verified out-the-door quotes, not Google star ratings.
We graded 46 dealerships across the Rockford area; below are the 15 most transparent by score. Already know your brand? Jump to the brand-by-brand rankings below.
Last updated October 19, 2026. CarEdge refreshes these rankings daily as new verified out-the-door quotes come in.
The Best Car Dealerships in Rockford
The best car dealership in Rockford by verified out-the-door price data is Biggers Mazda (Mazda, Elgin, IL): A grade, 100/100 across 19 verified quotes, with no dealer add-ons in any verified quote.
Close behind:
- Castle Kia Mchenry (Kia, McHenry), A grade, 100/100 across 8 verified quotes, with no dealer add-ons in any verified quote.
- Gerald Hyundai Of North Aurora (Hyundai, North Aurora), A grade, 100/100 across 8 verified quotes, with no dealer add-ons in any verified quote.
Full ranking, fees and add-on data for every graded dealer are below.
Best Dealer by Brand in Rockford
The top-graded dealer for each brand CarEdge ranks in Rockford. Click a brand for the full ranking.
| Brand | Best Dealer | City | Grade | Score | Quotes |
|---|---|---|---|---|---|
| GMC | Napleton Buick Gmc Crystal Lake | Crystal Lake | A | 100 | 4 |
| Honda | Advantage Honda Of Fox Lake | Fox Lake | A | 100 | 5 |
| Hyundai | Gerald Hyundai Of North Aurora | North Aurora | A | 100 | 8 |
| Kia | Castle Kia Mchenry | McHenry | A | 100 | 8 |
| Subaru | Castle Subaru Mchenry | McHenry | A | 99 | 13 |
| Toyota | St Charles Toyota | St. Charles | A | 98 | 29 |
Top 15 Car Dealerships in Rockford
Ranked by CarEdge transparency score across all brands, highest to lowest.
#1 — Biggers Mazda
Mazda · Grade: A · Score: 100/100 · Elgin, IL
Biggers Mazda is an A-grade Mazda dealer in Rockford on verified out-the-door data — 100/100 across 19 verified quotes.
- Doc fee: $375 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: 1.7% below the advertised listing
- Verified quotes: 19
See full review & verified quotes →
#2 — Castle Kia Mchenry
Kia · Grade: A · Score: 100/100 · McHenry, IL
Castle Kia Mchenry is an A-grade Kia dealer in Rockford on verified out-the-door data — 100/100 across 8 verified quotes.
- Doc fee: $378 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: 5.6% below the advertised listing
- Verified quotes: 8
See full review & verified quotes →
#3 — Gerald Hyundai Of North Aurora
Hyundai · Grade: A · Score: 100/100 · North Aurora, IL
Gerald Hyundai Of North Aurora is an A-grade Hyundai dealer in Rockford on verified out-the-door data — 100/100 across 8 verified quotes.
- Doc fee: $372 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: 3.2% below the advertised listing
- Verified quotes: 8
See full review & verified quotes →
#4 — Fox Valley Volkswagen Crystal Lake
Volkswagen · Grade: A · Score: 100/100 · Crystal Lake, IL
Fox Valley Volkswagen Crystal Lake is an A-grade Volkswagen dealer in Rockford on verified out-the-door data — 100/100 across 6 verified quotes.
- Doc fee: $380 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 6
See full review & verified quotes →
#5 — Gerald Hyundai
Hyundai · Grade: A · Score: 100/100 · North Aurora, IL
Gerald Hyundai is an A-grade Hyundai dealer in Rockford on verified out-the-door data — 100/100 across 6 verified quotes.
- Doc fee: $372 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 6
See full review & verified quotes →
#6 — Gerald Kia North Aurora
Kia · Grade: A · Score: 100/100 · North Aurora, IL
Gerald Kia North Aurora is an A-grade Kia dealer in Rockford on verified out-the-door data — 100/100 across 6 verified quotes.
- Doc fee: $373 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: 3.9% below the advertised listing
- Verified quotes: 6
See full review & verified quotes →
#7 — Advantage Honda Of Fox Lake
Honda · Grade: A · Score: 100/100 · Fox Lake, IL
Advantage Honda Of Fox Lake is an A-grade Honda dealer in Rockford on verified out-the-door data — 100/100 across 5 verified quotes.
- Doc fee: $378 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: 2.9% below the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#8 — Gerald Ford North Aurora
Ford · Grade: A · Score: 100/100 · North Aurora, IL
Gerald Ford North Aurora is an A-grade Ford dealer in Rockford on verified out-the-door data — 100/100 across 5 verified quotes.
- Doc fee: $376 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: 7.3% below the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#9 — Mercedes-Benz Of St. Charles
Mercedes-Benz · Grade: A · Score: 100/100 · St. Charles, IL
Mercedes-Benz Of St. Charles is an A-grade Mercedes-Benz dealer in Rockford on verified out-the-door data — 100/100 across 5 verified quotes.
- Doc fee: $370 — at the IL average
- Add-ons: None detected in verified quotes
- Listing accuracy: 0.6% below the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#10 — Napleton Buick Gmc Crystal Lake
Buick · Grade: A · Score: 100/100 · Crystal Lake, IL
Napleton Buick Gmc Crystal Lake is an A-grade Buick dealer in Rockford on verified out-the-door data — 100/100 across 4 verified quotes.
- Doc fee: $373 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: 5.8% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#11 — Wickstrom Ford
Ford · Grade: A · Score: 100/100 · Barrington, IL
Wickstrom Ford is an A-grade Ford dealer in Rockford on verified out-the-door data — 100/100 across 4 verified quotes.
- Doc fee: $362 — below the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: 2.3% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#12 — Castle Subaru Mchenry
Subaru · Grade: A · Score: 99/100 · McHenry, IL
Castle Subaru Mchenry is an A-grade Subaru dealer in Rockford on verified out-the-door data — 99/100 across 13 verified quotes.
- Doc fee: $378 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: 4.2% below the advertised listing
- Verified quotes: 13
See full review & verified quotes →
#13 — St Charles Toyota
Toyota · Grade: A · Score: 98/100 · St. Charles, IL
St Charles Toyota is an A-grade Toyota dealer in Rockford on verified out-the-door data — 98/100 across 29 verified quotes.
- Doc fee: $377 — above the IL average of $370
- Add-ons: 3% of quotes, avg $79
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 29
See full review & verified quotes →
#14 — Brilliance Honda
Honda · Grade: A · Score: 98/100 · Crystal Lake, IL
Brilliance Honda is an A-grade Honda dealer in Rockford on verified out-the-door data — 98/100 across 12 verified quotes.
- Doc fee: $375 — above the IL average of $370
- Add-ons: 8% of quotes, avg $75
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 12
See full review & verified quotes →
#15 — Brilliance Subaru
Subaru · Grade: A · Score: 98/100 · Elgin, IL
Brilliance Subaru is an A-grade Subaru dealer in Rockford on verified out-the-door data — 98/100 across 10 verified quotes.
- Doc fee: $390 — above the IL average of $370
- Add-ons: None detected in verified quotes
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 10
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).
Rockford Dealer Rankings by Brand
Shopping a specific brand in Rockford? These rankings drill into each:
- Best GMC Dealerships in Rockford
- Best Honda Dealerships in Rockford
- Best Hyundai Dealerships in Rockford
- Best Kia Dealerships in Rockford
- Best Subaru Dealerships in Rockford
- Best Toyota Dealerships in Rockford
Rockford Car Dealer Rankings at a Glance
| # | Dealer | City | Grade | Score | Doc Fee | Add-Ons | Quotes |
|---|---|---|---|---|---|---|---|
| 1 | Biggers Mazda | Elgin | A | 100 | $375 | $0 | 19 |
| 2 | Castle Kia Mchenry | McHenry | A | 100 | $378 | $0 | 8 |
| 3 | Gerald Hyundai Of North Aurora | North Aurora | A | 100 | $372 | $0 | 8 |
| 4 | Fox Valley Volkswagen Crystal Lake | Crystal Lake | A | 100 | $380 | $0 | 6 |
| 5 | Gerald Hyundai | North Aurora | A | 100 | $372 | $0 | 6 |
| 6 | Gerald Kia North Aurora | North Aurora | A | 100 | $373 | $0 | 6 |
| 7 | Advantage Honda Of Fox Lake | Fox Lake | A | 100 | $378 | $0 | 5 |
| 8 | Gerald Ford North Aurora | North Aurora | A | 100 | $376 | $0 | 5 |
| 9 | Mercedes-Benz Of St. Charles | St. Charles | A | 100 | $370 | $0 | 5 |
| 10 | Napleton Buick Gmc Crystal Lake | Crystal Lake | A | 100 | $373 | $0 | 4 |
| 11 | Wickstrom Ford | Barrington | A | 100 | $362 | $0 | 4 |
| 12 | Castle Subaru Mchenry | McHenry | A | 99 | $378 | $0 | 13 |
| 13 | St Charles Toyota | St. Charles | A | 98 | $377 | $79 | 29 |
| 14 | Brilliance Honda | Crystal Lake | A | 98 | $375 | $75 | 12 |
| 15 | Brilliance Subaru | Elgin | A | 98 | $390 | $0 | 10 |
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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