Transparency Verdict
Mario D'Addario Buick GMC earns a B.
Early read: mostly fair.
Based on a small number of verified deals so far, fees and pricing look fair. Read the out-the-door carefully and we'll update as we gather more.
Limited confidence — based on 1 verified out-the-door quote · Shelton, CT
Collected Jul 24, 2026 – Jul 24, 2026 · Updated Jul 29, 2026
Early read. The grade may shift as we log more deals here.
The full story
Why Mario D'Addario Buick GMC earned this grade
Between July 2026 and July 2026, CarEdge negotiated or logged 1 verified deals with this dealership. We pulled the doc fee, the add-ons, and the gap between advertised and out-the-door price from each one. Then we graded them the way a friend in the business would: on the things that actually cost you money.
✓ What they do well
1 thingDoc fee is in line with the market
At $699, their doc fee sits at or just under the CT average. Not exceptional, but nothing to fight over.
! Where to push back
1 thingThe listing isn't quite the price
Quoted prices run about 3.8% above the advertised listing. On a $35,000 vehicle that's roughly $1,330 in extra fees or markup.
TipGet an OTD quote in writing before you visit. Compare it to the listing — if there's a gap, ask them to account for every line.
1 verified OTD quote from Mario D'Addario Buick GMC
Real out-the-door worksheets, not reviews. Click “View Quote” on any row to see the price breakdown.
Recent Quotes
Verified out-the-door prices from real transactions
1 verified quote
Most Common Add-ons
At a Glance
Tips for Mario D'Addario Buick GMC
- Doc fee ($699) is slightly above average. Worth asking for a reduction.
- Minor add-ons (~$69) may appear. Ask what's included and if they can be removed.
- Dealer markup is only +4% above listing (excluding taxes). This dealer keeps their fees minimal.
- Limited data (1 quotes). Score may change as we collect more information.
Keep researching
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On the lot right now
Separate from the grade above — this is what's currently listed. Useful for spotting aging stock with room to negotiate.
Current Inventory
View all 156 vehicles →$53,356
Median Price
54
Median Days Listed
8
Added This Week
Days on Market
How long vehicles have been listed. Older stock means more room to negotiate.
Nearby Rated Dealers
These dealers near Shelton have transparency scores based on verified pricing data.
Frequently Asked Questions
What fees does Mario D'Addario Buick GMC charge?
Based on 1 verified out-the-door quote collected by CarEdge, Mario D'Addario Buick GMC charges a $699 documentation fee and averages $69 in dealer add-ons when present. Mario D'Addario Buick GMC earns Transparency Grade B (80.1/100).
What is Mario D'Addario Buick GMC's doc fee?
Mario D'Addario Buick GMC charges a typical documentation fee of $699. The CT average is $738. This is based on 1 verified OTD quotes in our database.
Does Mario D'Addario Buick GMC add mandatory add-ons?
Mario D'Addario Buick GMC adds an average of $69 in dealer add-ons when present. Ask for an itemized breakdown and negotiate to remove non-essential items like paint protection, nitrogen tire fill, or VIN etching.
Is Mario D'Addario Buick GMC a good dealer?
Mario D'Addario Buick GMC has a transparency score of 80.1/100, earning a Grade B. This score is based on their doc fees, add-on behavior, dealer markup, and data quality from 1 verified OTD quotes. This is a well-above-average score, indicating transparent pricing practices.
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How we know this
Every number on this page came from a real deal.
Most dealer review sites scrape star ratings and count angry posts. We do the opposite. CarEdge shops for cars alongside thousands of real buyers every week — and when we negotiate on their behalf, we capture the full out-the-door breakdown the dealer sends back.
For Mario D'Addario Buick GMC in Shelton, CT, that has meant 1 verified OTD quotes logged into our database. Each one is a PDF, an email, or a screenshot showing the actual doc fee, the actual add-ons, and the actual final price — not a salesperson's promise.
Fee Transparency
30%Is the doc fee reasonable, or is it just profit? We compare it against the state average — and the legal cap, where one exists.
Add-on Behavior
30%How often does the dealer try to stick on paint protection, theft deterrent, or nitrogen tires? And when they do, how much do they cost you?
Price Accuracy
30%Does the advertised listing price match what you'd actually sign for? We flag dealers whose out-the-door diverges from the listing.
Data Quality
10%More data = more trustworthy grade. Dealers with lots of recent, complete quotes score higher for consistency.
The four numbers behind the grade
Weighted ScoreThe raw component scores — the math that led to B.
Doc Fee Comparison
Pulled 1 quote records · Grades update as new data comes in · Dealers cannot pay to change their score.
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