Transparency Verdict
Billion Buick GMC earns a D.
Early caution.
On the small number of verified deals we have so far, we observed concerns on fees, add-ons, or markup. The picture may shift as we collect more data — get every number in writing.
Limited confidence — based on 2 verified out-the-door quotes and 1 tracked negotiation · Sioux City, IA
Collected Jul 27, 2026 – Jul 27, 2026 · Updated Jul 28, 2026
Early read. The grade may shift as we log more deals here.
The full story
Why Billion Buick GMC earned this grade
Between July 2026 and July 2026, CarEdge negotiated or logged 2 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 $180, their doc fee sits at or just under the IA average. Not exceptional, but nothing to fight over.
! Where to push back
1 thingListing price and real price disagree
Quoted prices run 11.6% above the advertised listing — roughly $4,060 extra on a $35k vehicle. That's a pattern, not a rounding error.
TipThis dealer's listing price is a marketing number, not a real one. Don't anchor to it — anchor to an out-the-door target.
2 verified OTD quotes from Billion 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 vehicle transaction — 2 individual quotes
Most Common Add-ons
At a Glance
Tips for Billion Buick GMC
- This dealer often adds $3,648 in dealer add-ons. Request a quote WITHOUT any add-ons upfront. These are almost always removable.
- Dealer markup is 12% above listing (excluding taxes). Ask for an itemized breakdown — doc fees and add-ons may be negotiable.
- Doc fee ($180) is at or below national average. One less thing to negotiate.
- Limited data (2 quotes). Score may change as we collect more information.
Keep researching
Look up another dealer by name, brand, city, or zip.
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 104 vehicles →$50,091
Median Price
106
Median Days Listed
16
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 Sioux City have transparency scores based on verified pricing data.
Frequently Asked Questions
What fees does Billion Buick GMC charge?
Based on 2 verified out-the-door quotes collected by CarEdge, Billion Buick GMC charges a $180 documentation fee and averages $3,648 in dealer add-ons when present. Billion Buick GMC earns Transparency Grade D (60.5/100).
What is Billion Buick GMC's doc fee?
Billion Buick GMC charges a typical documentation fee of $180. The IA average is $198. This is based on 2 verified OTD quotes in our database.
Does Billion Buick GMC add mandatory add-ons?
Billion Buick GMC adds an average of $3,648 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 Billion Buick GMC a good dealer?
Billion Buick GMC has a transparency score of 60.5/100, earning a Grade D. This score is based on their doc fees, add-on behavior, dealer markup, and data quality from 2 verified OTD quotes. This is below average. Consider getting quotes from other dealers in the area for comparison.
Explore Buick and Iowa dealer data
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 Billion Buick GMC in Sioux City, IA, that has meant 2 verified OTD quotes across 1 negotiated deals 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 D.
Doc Fee Comparison
Pulled 2 quote records · Grades update as new data comes in · Dealers cannot pay to change their score.
Bring real numbers to this dealership
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