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Group 1 Buick GMC South earns an A.
Fees are reasonable, add-ons are rare, and the final price usually matches the listing.
- $225
- Doc fee
- None
- Dealer add-ons
$1 below TX avg
In 22 recent quotes
Strong confidenceHouston, TXUpdated How we score dealersPart of Group 1 Automotive Inc.
The full story
Why Group 1 Buick GMC South earned this grade
Between October 2025 and July 2026, CarEdge negotiated or logged 22 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
4 thingsDoc fee is in line with the market
At $225, their doc fee sits at or just under the TX average. Not exceptional, but nothing to fight over.
No dealer add-ons detected
Across 22 recent quotes, we haven't seen a single "dealer accessory," "paint protection," or "theft deterrent" line item. That is rare, and it is good.
The price you see is the price you get
Their quoted selling price almost exactly matches the advertised listing price. No mystery markup, no surprise "market adjustment."
Shoppers who negotiated saved real money
Across 7 back-and-forth negotiations we tracked here, buyers saved an average of $2,033 from first quote to final. That tells you their opening number has room.
TipNever take the first quote. Their floor is lower than what they offer on day one.
22 verified OTD quotes from Group 1 Buick GMC South
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
14 vehicle transactions — 22 individual quotes
2026 GMC Sierra EV
At a Glance
Tips for Group 1 Buick GMC South
- A-rated dealer! Focus on vehicle price negotiation, since fees are already competitive.
- Doc fee ($225) is at or below TX average. One less thing to negotiate.
- This dealer typically doesn't add mandatory dealer add-ons. That's a good sign of transparency.
- Dealer markup is about 4% below listing (excluding taxes). This dealer keeps their fees minimal.
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 494 vehicles →$57,406
Median Price
38
Median Days Listed
82
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 Houston have transparency scores based on verified pricing data.
Frequently Asked Questions
What fees does Group 1 Buick GMC South charge?
Based on 22 verified out-the-door quotes collected by CarEdge, Group 1 Buick GMC South charges a $225 documentation fee and typically adds no mandatory dealer add-ons. Group 1 Buick GMC South earns Transparency Grade A (99/100).
What is the doc fee at Group 1 Buick GMC South?
Group 1 Buick GMC South charges a typical documentation fee of $225. The TX average is $226. This is based on 22 verified OTD quotes in our database.
Does Group 1 Buick GMC South add dealer add-ons?
Based on our data, quotes from Group 1 Buick GMC South typically do not include dealer add-ons. When add-ons do appear, some may be marked optional. Dealer add-ons appeared on 0 of 22 recent verified quotes.
Is Group 1 Buick GMC South a good dealership?
Group 1 Buick GMC South has a transparency score of 99/100, earning a Grade A. This score is based on their doc fees, add-on behavior, dealer markup, and data quality from 22 verified OTD quotes. This is a well-above-average score, indicating transparent pricing practices.
What do reviews say about Group 1 Buick GMC South?
CarEdge reviews Group 1 Buick GMC South on 22 verified out-the-door quotes, not star ratings. It earns transparency grade A (99/100), with a typical doc fee of $225 versus a TX average of $226. None of its 22 recent quotes included dealer add-ons.
Is Group 1 Buick GMC South a transparent Buick dealer in Houston?
Yes. Group 1 Buick GMC South holds CarEdge Transparency Grade A (99/100), based on 22 verified out-the-door quotes. That is well above average on doc fees, add-ons and pricing accuracy.
How does Group 1 Buick GMC South compare to other Buick dealers?
You can compare Group 1 Buick GMC South's transparency score, doc fees, and add-on behavior against other Buick dealers using our comparison tool or by browsing Buick dealers in your area. Scores are based on the same methodology for every dealer. CarEdge's market guides Best Buick Dealerships in Houston, Best Buick Dealerships in Texas and Best Buick Dealerships in the US rank Buick dealers on the same data.
Explore Buick and Texas 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 Group 1 Buick GMC South in Houston, TX, that has meant 22 verified OTD quotes across 7 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 stick you with mandatory add-ons like paint protection or theft deterrent — the kind you can't say no to? Add-ons the dealer discloses as optional don't count against them.
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 A.
Doc Fee Comparison
Pulled 22 quote records · Grades update as new data comes in · Dealers cannot pay to change their score.
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