Best Used Car Dealers in Rockford, Ranked by CarEdge Data
Key Takeaways
- 13 used car dealers in Rockford graded, including two independent used lots in the top 13 and the used departments of new-car dealers, on verified out-the-door quotes for used cars.
- Biggers Mazda is the highest-graded used car dealer in the Rockford metro.
- Get an itemized out-the-door quote in writing before you visit. Used-car doc fees and add-ons vary more than new-car ones.
This is the CarEdge Dealer Transparency Index ranking of used car dealers in the Rockford metro. It covers independent used lots and the used departments of new-car dealers, graded on verified out-the-door quotes, not star ratings.
13 dealers in Rockford have enough verified used-car quotes to grade, two of the top 13 of them independent. Below are the top 13.
Last updated October 8, 2026. CarEdge refreshes these rankings daily as new verified out-the-door quotes come in.
The Best Used Car Dealers in Rockford
The best used car dealer in Rockford by verified out-the-door price data is Biggers Mazda (Mazda dealer, used department, Elgin): A grade, 100/100, 5 verified used-car quotes, with no dealer add-ons in any verified used-car quote.
Close behind:
- Driven Auto Of Dundee (independent, East Dundee), A grade, 100/100, 8 verified used-car quotes, with no dealer add-ons in any verified used-car quote.
- Fox Valley Volkswagen Crystal Lake (Volkswagen, Crystal Lake), A grade, 100/100, 4 verified used-car quotes, with no dealer add-ons in any verified used-car quote.
Full ranking, used-car fees and add-on data for every graded dealer are below.
Top 13 Used Car Dealers in Rockford
Ranked by CarEdge transparency score, highest to lowest. Used-car figures come from each dealer’s verified used and CPO quotes.
#1 — Biggers Mazda
Mazda dealer, used department · Grade: A · Score: 100/100 · Elgin, IL
Biggers Mazda is the highest-graded used car dealer in Rockford on verified data, with no dealer add-ons in any verified used-car quote.
- Verified used-car quotes: 5
- Doc fee on used cars: $378 — below the IL average of $379
- Add-ons on used cars: None in verified used-car quotes
- Used-car quotes vs listing price: Not enough listing data
See full review & verified quotes →
#2 — Driven Auto Of Dundee
Independent used car dealer · Grade: A · Score: 100/100 · East Dundee, IL
Driven Auto Of Dundee ranks #2 among used car dealers in Rockford on verified data, with no dealer add-ons in any verified used-car quote.
- Verified used-car quotes: 8
- Doc fee on used cars: $377 — below the IL average of $379
- Add-ons on used cars: None in verified used-car quotes
- Used-car quotes vs listing price: 3.9% below the advertised listing
See full review & verified quotes →
#3 — Fox Valley Volkswagen Crystal Lake
Volkswagen dealer, used department · Grade: A · Score: 100/100 · Crystal Lake, IL
Fox Valley Volkswagen Crystal Lake ranks #3 among used car dealers in Rockford on verified data, with no dealer add-ons in any verified used-car quote.
- Verified used-car quotes: 4
- Doc fee on used cars: $384 — above the IL average of $379
- Add-ons on used cars: None in verified used-car quotes
- Used-car quotes vs listing price: Quoted price matches the advertised listing
See full review & verified quotes →
#4 — Castle Subaru Mchenry
Subaru dealer, used department · Grade: A · Score: 99/100 · McHenry, IL
Castle Subaru Mchenry ranks #4 among used car dealers in Rockford on verified data, with no dealer add-ons in any verified used-car quote.
- Verified used-car quotes: 6
- Doc fee on used cars: $378 — below the IL average of $379
- Add-ons on used cars: None in verified used-car quotes
- Used-car quotes vs listing price: 1.9% below the advertised listing
See full review & verified quotes →
#5 — Mcgrath Honda Of St. Charles
Honda dealer, used department · Grade: A · Score: 98/100 · St. Charles, IL
Mcgrath Honda Of St. Charles ranks #5 among used car dealers in Rockford on verified data, with no dealer add-ons in any verified used-car quote.
- Verified used-car quotes: 8
- Doc fee on used cars: $377 — below the IL average of $379
- Add-ons on used cars: None in verified used-car quotes
- Used-car quotes vs listing price: 0.6% below the advertised listing
See full review & verified quotes →
#6 — Bmw Of Crystal Lake
BMW dealer, used department · Grade: A · Score: 98/100 · Crystal Lake, IL
Bmw Of Crystal Lake ranks #6 among used car dealers in Rockford on verified data, with a $378 doc fee on used cars, under the IL average of $379.
- Verified used-car quotes: 7
- Doc fee on used cars: $378 — below the IL average of $379
- Add-ons on used cars: 14% of used-car quotes, avg $499
- Used-car quotes vs listing price: 3.0% below the advertised listing
See full review & verified quotes →
#7 — Victor Ford
Ford dealer, used department · Grade: A · Score: 98/100 · Wauconda, IL
Victor Ford ranks #7 among used car dealers in Rockford on verified data, with no dealer add-ons in any verified used-car quote.
- Verified used-car quotes: 4
- Doc fee on used cars: $377 — below the IL average of $379
- Add-ons on used cars: None in verified used-car quotes
- Used-car quotes vs listing price: 2.3% below the advertised listing
See full review & verified quotes →
#8 — Mcgrath Honda Elgin
Honda dealer, used department · Grade: A · Score: 96/100 · Elgin, IL
Mcgrath Honda Elgin ranks #8 among used car dealers in Rockford on verified data, with no dealer add-ons in any verified used-car quote.
- Verified used-car quotes: 14
- Doc fee on used cars: $374 — below the IL average of $379
- Add-ons on used cars: None in verified used-car quotes
- Used-car quotes vs listing price: 1.2% below the advertised listing
See full review & verified quotes →
#9 — Jon Green Family Auto
Independent used car dealer · Grade: A · Score: 96/100 · Milton, WI
Jon Green Family Auto ranks #9 among used car dealers in Rockford on verified data, with no dealer add-ons in any verified used-car quote.
- Verified used-car quotes: 5
- Doc fee on used cars: $391 — below the WI average of $404
- Add-ons on used cars: None in verified used-car quotes
- Used-car quotes vs listing price: Quoted price matches the advertised listing
See full review & verified quotes →
#10 — Elgin Kia
Kia dealer, used department · Grade: B · Score: 86/100 · Elgin, IL
Elgin Kia ranks #10 among used car dealers in Rockford on verified data, with no dealer add-ons in any verified used-car quote.
- Verified used-car quotes: 7
- Doc fee on used cars: $667 — well above the IL average of $379
- Add-ons on used cars: None in verified used-car quotes
- Used-car quotes vs listing price: 2.6% below the advertised listing
See full review & verified quotes →
#11 — Rosen Hyundai Algonquin
Hyundai dealer, used department · Grade: B · Score: 83/100 · Algonquin, IL
Rosen Hyundai Algonquin ranks #11 among used car dealers in Rockford on verified data, with a $187 doc fee on used cars, under the IL average of $379.
- Verified used-car quotes: 4
- Doc fee on used cars: $187 — well below the IL average of $379
- Add-ons on used cars: 75% of used-car quotes, avg $1,666
- Used-car quotes vs listing price: Quoted price matches the advertised listing
See full review & verified quotes →
#12 — Janesville Subaru
Subaru dealer, used department · Grade: C · Score: 79/100 · Janesville, WI
Janesville Subaru ranks #12 among used car dealers in Rockford on verified data, with a $399 doc fee on used cars, under the WI average of $404.
- Verified used-car quotes: 6
- Doc fee on used cars: $399 — below the WI average of $404
- Add-ons on used cars: 100% of used-car quotes, avg $696
- Used-car quotes vs listing price: 6.7% below the advertised listing
See full review & verified quotes →
#13 — Bachrodt On State
Used car dealer · Grade: F · Score: 54/100 · Rockford, IL
Bachrodt On State ranks #13 among used car dealers in Rockford on verified data, with used-car quotes that match the advertised price.
- Verified used-car quotes: 5
- Doc fee on used cars: $547 — well above the IL average of $379
- Add-ons on used cars: 100% of used-car quotes, avg $1,194
- Used-car quotes vs listing price: Quoted price matches the advertised listing
See full review & verified quotes →
How CarEdge Ranks Used Car Dealers
Every dealer here has at least four verified out-the-door quotes for used or certified pre-owned vehicles: real PDFs, emails and screenshots from actual shoppers, not star ratings. The ranking and grade are the dealer’s published CarEdge Dealer Transparency Index grade, which weights Fee Transparency (30%), Add-on Behavior (30%), Price Accuracy (30%) and Data Quality (10%) across all of its quotes. Every doc fee, add-on and price figure on this page comes from its used-car quotes only.
Grades: A (90–100), B (80–89), C (70–79), D (60–69), F (below 60).
Rockford Used Car Dealer Rankings at a Glance
| # | Dealer | Type | City | Grade | Score | Used Doc Fee | Used Add-on Rate | Used Quotes |
|---|---|---|---|---|---|---|---|---|
| 1 | Biggers Mazda | Mazda | Elgin | A | 100 | $378 | 0% | 5 |
| 2 | Driven Auto Of Dundee | independent | East Dundee | A | 100 | $377 | 0% | 8 |
| 3 | Fox Valley Volkswagen Crystal Lake | Volkswagen | Crystal Lake | A | 100 | $384 | 0% | 4 |
| 4 | Castle Subaru Mchenry | Subaru | McHenry | A | 99 | $378 | 0% | 6 |
| 5 | Mcgrath Honda Of St. Charles | Honda | St. Charles | A | 98 | $377 | 0% | 8 |
| 6 | Bmw Of Crystal Lake | BMW | Crystal Lake | A | 98 | $378 | 14% | 7 |
| 7 | Victor Ford | Ford | Wauconda | A | 98 | $377 | 0% | 4 |
| 8 | Mcgrath Honda Elgin | Honda | Elgin | A | 96 | $374 | 0% | 14 |
| 9 | Jon Green Family Auto | independent | Milton | A | 96 | $391 | 0% | 5 |
| 10 | Elgin Kia | Kia | Elgin | B | 86 | $667 | 0% | 7 |
| 11 | Rosen Hyundai Algonquin | Hyundai | Algonquin | B | 83 | $187 | 75% | 4 |
| 12 | Janesville Subaru | Subaru | Janesville | C | 79 | $399 | 100% | 6 |
| 13 | Bachrodt On State | franchise | Rockford | F | 54 | $547 | 100% | 5 |
Shopping new? CarEdge also ranks every brand’s dealers in Rockford: see the best car dealerships in Rockford.
How to Buy a Used Car Without Surprises
- Get an itemized out-the-door quote in writing before you visit. If a dealer won’t send one, keep shopping.
- Ask what fees apply to used cars. Reconditioning, prep and certification fees often show up only on used vehicles.
- Ask for all dealer add-ons removed. Window tint, nitrogen and protection packages are optional.
- Get the vehicle history report and an independent inspection. A fair price on a car with problems is not a good deal.
- Compare at least three dealers. Used-car doc fees in the same metro can differ by hundreds of dollars.
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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