Best GMC Dealerships in Colorado, Ranked by CarEdge Data
This is the CarEdge Dealer Transparency Index ranking for GMC dealers across Colorado. We grade dealers using verified out-the-door quotes — real PDFs, emails, and signed deals — not Google star ratings.
We graded every GMC dealer in Colorado 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.
Last updated November 12, 2026. CarEdge refreshes these rankings daily as new verified out-the-door quotes come in.
What is the best GMC dealer in Colorado?
The best GMC dealer in Colorado by verified out-the-door price data is Transwest Gmc (Henderson, CO): A grade, 100/100 across 6 quotes from the past year, with no quoted add-ons in its 6 quotes from the past year.
Close behind:
- Johnson Auto Plaza (Brighton), A grade, 98/100 across 13 quotes from the past year, with $599 in dealer fees, under the CO median of $741.
- Autonation Buick Gmc West (Golden), A grade, 96/100 across 6 quotes from the past year, with no quoted add-ons in its 6 quotes from the past year.
Best for:
- Lowest dealer fees: Faricy Automotive (Salida), $33, against the CO median of $741.
- No quoted add-ons: Transwest Gmc (Henderson), none in its 6 quotes from the past year.
- Most quotes, past year: Alpine Buick Gmc (Littleton), 26 quotes from the past year behind its B.
Among the A and B dealers ranked on this page.
Full ranking, dealer fees and quoted add-ons for every graded dealer are below.
Top 10 GMC Dealers in Colorado
Ranked by CarEdge transparency score, highest to lowest. Each dealer profile links to the full review with verified out-the-door quotes.
#1 — Transwest Gmc
Grade: A · Score: 100/100 · Henderson, CO
Transwest Gmc is the top-graded GMC dealer in Colorado by verified data — A grade, 100/100, based on 6 quotes from the past year.
- Dealer fees: $595 — below the CO median of $741
- Quoted add-ons: None in 6 quotes from the past year
- Quotes, past year: 6
See full review & verified quotes →
#2 — Johnson Auto Plaza
Grade: A · Score: 98/100 · Brighton, CO
Johnson Auto Plaza put quoted add-ons on just 15% of its quotes from the past year — light for an A-grade dealer.
- Dealer fees: $599 — below the CO median of $741
- Quoted add-ons: On 2 of 13 quotes from the past year (15%)
- Quotes, past year: 13
See full review & verified quotes →
#3 — Autonation Buick Gmc West
Grade: A · Score: 96/100 · Golden, CO
Not one of Autonation Buick Gmc West’s 6 quotes from the past year carried a quoted add-on — a clean record at the A grade.
- Dealer fees: $799 — above the CO median of $741
- Quoted add-ons: None in 6 quotes from the past year
- Quotes, past year: 6
See full review & verified quotes →
#4 — Autonation Buick Gmc Park Meadows
Grade: A · Score: 96/100 · Lone Tree, CO
Autonation Buick Gmc Park Meadows keeps the F&I office out of it: no quoted add-ons in its 5 quotes from the past year.
- Dealer fees: $799 — above the CO median of $741
- Quoted add-ons: None in 5 quotes from the past year
- Quotes, past year: 5
See full review & verified quotes →
#5 — Shortline Buick Gmc
Grade: A · Score: 92/100 · Aurora, CO
Shortline Buick Gmc earns an A-grade on the CarEdge Dealer Transparency Index, based on 4 quotes from the past year.
- Dealer fees: $789 — above the CO median of $741
- Quoted add-ons: On 2 of 4 quotes from the past year (50%)
- Quotes, past year: 4
See full review & verified quotes →
#6 — Mike Maroone Gmc
Grade: A · Score: 91/100 · Boulder, CO
Mike Maroone Gmc earns an A-grade on the CarEdge Dealer Transparency Index, based on 6 quotes from the past year.
- Dealer fees: $795 — above the CO median of $741
- Quoted add-ons: On 2 of 6 quotes from the past year (33%)
- Quotes, past year: 6
See full review & verified quotes →
#7 — Loveland Buick Gmc
Grade: A · Score: 91/100 · Loveland, CO
Loveland Buick Gmc earns an A-grade on the CarEdge Dealer Transparency Index, based on 5 quotes from the past year.
- Dealer fees: $694 — below the CO median of $741
- Quoted add-ons: On 2 of 5 quotes from the past year (40%)
- Quotes, past year: 5
See full review & verified quotes →
#8 — Faricy Automotive
Grade: B · Score: 88/100 · Salida, CO
Faricy Automotive’s $33 in dealer fees comes in well below the CO median of $741 — money that stays in your pocket at signing.
- Dealer fees: $33 — below the CO median of $741
- Quoted add-ons: On 2 of 5 quotes from the past year (40%)
- Quotes, past year: 5
See full review & verified quotes →
#9 — Alpine Buick Gmc
Grade: B · Score: 85/100 · Littleton, CO
Alpine Buick Gmc holds the B grade across 26 quotes from the past year — a substantial sample size.
- Dealer fees: $770 — above the CO median of $741
- Quoted add-ons: On 11 of 26 quotes from the past year (42%)
- Quotes, past year: 26
See full review & verified quotes →
#10 — O’meara Gmc
Grade: B · Score: 83/100 · Denver, CO
Quoted add-ons appear on 80% of O’meara Gmc’s quotes from the past year — the highest rate on this list. Ask for an itemized OTD before signing.
- Dealer fees: $799 — above the CO median of $741
- Quoted add-ons: On 4 of 5 quotes from the past year (80%)
- Quotes, past year: 5
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.
Only quotes from the past year count. We split them into four groups, newest first: the newest counts 50%, then 30%, 15% and 5%.
Each dealer’s transparency score (out of 100) is weighted across four dimensions:
- Fee Transparency (30%) — Are the dealer’s fees reasonable? We add up every dealer fee and compare the total with the state median.
- Add-on Behavior (30%) — How often does the dealer include quoted add-ons like paint protection or theft deterrent, the kind you can’t say no to? Add-ons the dealer marks as optional don’t count against them.
- Price Accuracy (30%) — Does the advertised price include every charge you have to pay? We check each quote against the vehicle page: dealer fees, add-ons, the advertised price and the discount.
- Data Quality (10%) — Does the quote list taxes, dealer fees, add-ons and government fees each on its own line? Each one is worth a quarter.
Grades: A (90–100), B (80–89), C (70–79), D (60–69), F (below 60). Read the methodology →
GMC Dealers by Metro in Colorado
Shopping a specific city? These metro-level rankings drill into GMC dealers near each major Colorado market:
Colorado GMC Dealer Rankings at a Glance
| # | Dealer | City | Grade | Score | Dealer Fees | Quoted Add-ons | Quotes, Past Year |
|---|---|---|---|---|---|---|---|
| 1 | Transwest Gmc | Henderson | A | 100 | $595 | None | 6 |
| 2 | Johnson Auto Plaza | Brighton | A | 98 | $599 | 15% | 13 |
| 3 | Autonation Buick Gmc West | Golden | A | 96 | $799 | None | 6 |
| 4 | Autonation Buick Gmc Park Meadows | Lone Tree | A | 96 | $799 | None | 5 |
| 5 | Shortline Buick Gmc | Aurora | A | 92 | $789 | 50% | 4 |
| 6 | Mike Maroone Gmc | Boulder | A | 91 | $795 | 33% | 6 |
| 7 | Loveland Buick Gmc | Loveland | A | 91 | $694 | 40% | 5 |
| 8 | Faricy Automotive | Salida | B | 88 | $33 | 40% | 5 |
| 9 | Alpine Buick Gmc | Littleton | B | 85 | $770 | 42% | 26 |
| 10 | O’meara Gmc | Denver | B | 83 | $799 | 80% | 5 |
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 advertised price. Dealers with a gap between advertised price and final OTD aren’t being straight with you. Don’t negotiate off the advertised number.
- Compare three dealers minimum. Even within the same metro, dealer fees, quoted add-ons and advertised price 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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