Best Car Dealerships in Rockford, Ranked by CarEdge Data
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 47 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 November 5, 2026. CarEdge refreshes these rankings daily as new verified out-the-door quotes come in.
What is the best car dealership 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 22 verified quotes, with no dealer add-ons in any verified quote.
Close behind:
- Gerald Hyundai (Hyundai, North Aurora), A grade, 100/100 across 16 verified quotes, with no dealer add-ons in any verified quote.
- Castle Kia Mchenry (Kia, McHenry), A grade, 100/100 across 12 verified quotes, with no dealer add-ons in any verified quote.
Best for:
- Lowest doc fee: Burtness Chevrolet, Inc. (Chevrolet, Orfordville), $299, against the WI average of $401.
- No dealer add-ons: St Charles Toyota (Toyota, St. Charles), none in any of its 33 verified quotes.
- Selling price under the listing: Gerald Kia North Aurora (Kia, North Aurora), quotes average 6.1% below the advertised price.
- Most verified quotes: St Charles Toyota (Toyota, St. Charles), 33 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.
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 |
|---|---|---|---|---|---|
| Chevrolet | Ken Nelson Chevrolet | Dixon | A | 100 | 7 |
| GMC | Napleton Buick Gmc Crystal Lake | Crystal Lake | A | 100 | 4 |
| Honda | Mcgrath Honda Of St. Charles | St. Charles | A | 100 | 11 |
| Hyundai | Gerald Hyundai | North Aurora | A | 100 | 16 |
| Kia | Castle Kia Mchenry | McHenry | A | 100 | 12 |
| Subaru | Castle Subaru Mchenry | McHenry | A | 99 | 16 |
| Toyota | St Charles Toyota | St. Charles | A | 99 | 33 |
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 22 verified quotes.
- Doc fee: $375 — above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 2.2% below the advertised listing
- Verified quotes: 22
See full review & verified quotes →
#2 — 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 16 verified quotes.
- Doc fee: $373 — above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 3.2% below the advertised listing
- Verified quotes: 16
See full review & verified quotes →
#3 — 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 12 verified quotes.
- Doc fee: $376 — above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 5.4% below the advertised listing
- Verified quotes: 12
See full review & verified quotes →
#4 — Mcgrath Honda Of St. Charles
Honda · Grade: A · Score: 100/100 · St. Charles, IL
Mcgrath Honda Of St. Charles is an A-grade Honda dealer in Rockford on verified out-the-door data — 100/100 across 11 verified quotes.
- Doc fee: $376 — above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 1.7% above the advertised listing
- Verified quotes: 11
See full review & verified quotes →
#5 — 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 7 verified quotes.
- Doc fee: $378 — above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 3.8% below the advertised listing
- Verified quotes: 7
See full review & verified quotes →
#6 — Ken Nelson Chevrolet
Chevrolet · Grade: A · Score: 100/100 · Dixon, IL
Ken Nelson Chevrolet is an A-grade Chevrolet dealer in Rockford on verified out-the-door data — 100/100 across 7 verified quotes.
- Doc fee: $498 — well above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 7
See full review & verified quotes →
#7 — 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 5 verified quotes.
- Doc fee: $376 — above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 2.3% below the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#8 — 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 5 verified quotes.
- Doc fee: $378 — above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 6.1% 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 — below the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 0.6% below the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#10 — Burtness Chevrolet, Inc.
Chevrolet · Grade: A · Score: 100/100 · Orfordville, WI
Burtness Chevrolet, Inc. is an A-grade Chevrolet dealer in Rockford on verified out-the-door data — 100/100 across 4 verified quotes.
- Doc fee: $299 — well below the WI average of $401
- Add-ons: None detected in verified quotes
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#11 — 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 $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 5.6% below the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#12 — St Charles Toyota
Toyota · Grade: A · Score: 99/100 · St. Charles, IL
St Charles Toyota is an A-grade Toyota dealer in Rockford on verified out-the-door data — 99/100 across 33 verified quotes.
- Doc fee: $378 — above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 1.0% below the advertised listing
- Verified quotes: 33
See full review & verified quotes →
#13 — Mcgrath Honda Elgin
Honda · Grade: A · Score: 99/100 · Elgin, IL
Mcgrath Honda Elgin is an A-grade Honda dealer in Rockford on verified out-the-door data — 99/100 across 20 verified quotes.
- Doc fee: $375 — above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 20
See full review & verified quotes →
#14 — 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 16 verified quotes.
- Doc fee: $377 — above the IL average of $371
- Add-ons: None detected in verified quotes
- Listing accuracy: 3.3% below the advertised listing
- Verified quotes: 16
See full review & verified quotes →
#15 — Brilliance Honda
Honda · Grade: A · Score: 99/100 · Crystal Lake, IL
Brilliance Honda is an A-grade Honda dealer in Rockford on verified out-the-door data — 99/100 across 14 verified quotes.
- Doc fee: $376 — above the IL average of $371
- Add-ons: 7% of quotes, avg $64
- Listing accuracy: 1.0% below the advertised listing
- Verified quotes: 14
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 Chevrolet Dealerships in Rockford
- 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 | 22 |
| 2 | Gerald Hyundai | North Aurora | A | 100 | $373 | $0 | 16 |
| 3 | Castle Kia Mchenry | McHenry | A | 100 | $376 | $0 | 12 |
| 4 | Mcgrath Honda Of St. Charles | St. Charles | A | 100 | $376 | $0 | 11 |
| 5 | Advantage Honda Of Fox Lake | Fox Lake | A | 100 | $378 | $0 | 7 |
| 6 | Ken Nelson Chevrolet | Dixon | A | 100 | $498 | $0 | 7 |
| 7 | Fox Valley Volkswagen Crystal Lake | Crystal Lake | A | 100 | $376 | $0 | 5 |
| 8 | Gerald Kia North Aurora | North Aurora | A | 100 | $378 | $0 | 5 |
| 9 | Mercedes-Benz Of St. Charles | St. Charles | A | 100 | $370 | $0 | 5 |
| 10 | Burtness Chevrolet, Inc. | Orfordville | A | 100 | $299 | $0 | 4 |
| 11 | Napleton Buick Gmc Crystal Lake | Crystal Lake | A | 100 | $373 | $0 | 4 |
| 12 | St Charles Toyota | St. Charles | A | 99 | $378 | $0 | 33 |
| 13 | Mcgrath Honda Elgin | Elgin | A | 99 | $375 | $0 | 20 |
| 14 | Castle Subaru Mchenry | McHenry | A | 99 | $377 | $0 | 16 |
| 15 | Brilliance Honda | Crystal Lake | A | 99 | $376 | $64 | 14 |
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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