Best Nissan Dealerships in Illinois, Ranked by CarEdge Data
Key Takeaways
- Top 6 Nissan dealers in Illinois, ranked using verified out-the-door quotes — not Google star ratings.
- Kc Summers Nissan (Mattoon) is the highest-graded Nissan dealer in Illinois.
- Nissan Of Elgin (Elgin) carries the main watch-out — add-ons appear on 40% of verified quotes, averaging $859 — 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 Nissan dealers across Illinois. We grade dealers using verified out-the-door quotes — real PDFs, emails, and signed deals — not Google star ratings.
We graded every Nissan dealer in Illinois with enough verified out-the-door quotes to score with confidence. If you’re shopping a specific metro, jump to the city-by-city rankings below for a tighter local shortlist.
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).
Top 6 Nissan Dealers in Illinois
Ranked by CarEdge transparency score, highest to lowest. Each dealer profile links to the full review with verified out-the-door quotes.
#1 — Kc Summers Nissan
Grade: A · Score: 100/100 · Mattoon, IL
Kc Summers Nissan is the top-graded Nissan dealer in Illinois by verified data — A grade, 100/100, based on 4 verified OTD quotes.
- Doc fee: $373 — below the IL average of $387
- Add-ons: None detected in verified quotes
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 4
See full review & verified quotes →
#2 — Bill Kay Nissan
Grade: A · Score: 96/100 · Downers Grove, IL
Bill Kay Nissan keeps add-ons on just 22% of verified quotes — light for an A-grade dealer.
- Doc fee: $376 — below the IL average of $387
- Add-ons: 22% of quotes, avg $225
- Listing accuracy: 1.5% below the advertised listing
- Verified quotes: 9
See full review & verified quotes →
#3 — Gerald Nissan Of Matteson
Grade: A · Score: 96/100 · Matteson, IL
Gerald Nissan Of Matteson quoted prices 8.3% below the advertised listing — the kind of discount that rewards getting the OTD in writing.
- Doc fee: $412 — above the IL average of $387
- Add-ons: 20% of quotes, avg $200
- Listing accuracy: 8.3% below the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#4 — Berman Nissan Of Chicago
Grade: A · Score: 93/100 · Chicago, IL
Berman Nissan Of Chicago quotes prices within 0.2% of the advertised listing — one of the cleanest pricing patterns on this list.
- Doc fee: $320 — below the IL average of $387
- Add-ons: 29% of quotes, avg $342
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 7
See full review & verified quotes →
#5 — Nissan Of Elgin
Grade: B · Score: 83/100 · Elgin, IL
What Nissan Of Elgin advertises is what its verified quotes show — within 0.2% of listing.
- Doc fee: $606 — well above the IL average of $387
- Add-ons: 40% of quotes, avg $859
- Listing accuracy: Quoted price matches the advertised listing
- Verified quotes: 5
See full review & verified quotes →
#6 — Countryside Nissan
Grade: B · Score: 80/100 · Countryside, IL
Countryside Nissan averages $6,776 in add-ons when they appear (on 24% of verified quotes) — the steepest add-on cost on this list. Ask for an itemized OTD before signing.
- Doc fee: $371 — below the IL average of $387
- Add-ons: 24% of quotes, avg $6,776
- Listing accuracy: 4.3% above the advertised listing
- Verified quotes: 21
See full review & verified quotes →
Nissan Dealers by Metro in Illinois
Shopping a specific city? These metro-level rankings drill into Nissan dealers near each major Illinois market:
Illinois Nissan Dealer Rankings at a Glance
| # | Dealer | City | Grade | Score | Doc Fee | Add-Ons | Quotes |
|---|---|---|---|---|---|---|---|
| 1 | Kc Summers Nissan | Mattoon | A | 100 | $373 | $0 | 4 |
| 2 | Bill Kay Nissan | Downers Grove | A | 96 | $376 | $225 | 9 |
| 3 | Gerald Nissan Of Matteson | Matteson | A | 96 | $412 | $200 | 5 |
| 4 | Berman Nissan Of Chicago | Chicago | A | 93 | $320 | $342 | 7 |
| 5 | Nissan Of Elgin | Elgin | B | 83 | $606 | $859 | 5 |
| 6 | Countryside Nissan | Countryside | B | 80 | $371 | $6,776 | 21 |
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. Data updated quarterly. Last updated: Q3 2026.
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