Transparency Verdict
M&m Diamond Cars Llc earns an F.
Early caution — limited data.
On the small number of verified deals we have so far, we observed significant fee, add-on, or markup concerns. This is an early read and the picture may shift as we collect more — get every number in writing.
Limited confidence — based on 0 verified out-the-door quotes · Phoenix, AZ
Collected Jun 30, 2026 – Jun 30, 2026 · Updated Jun 30, 2026
Early read. The grade may shift as we log more deals here.
Location
Phoenix, AZ
The full story
Why M&m Diamond Cars Llc earned this grade
Between June 2026 and June 2026, CarEdge negotiated or logged 0 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.
0 verified OTD quotes from M&m Diamond Cars Llc
Real out-the-door worksheets, not reviews. Click “View Quote” on any row to see the price breakdown.
Tips for M&m Diamond Cars Llc
- Low-rated dealer. Get everything in writing. Ask for an itemized OTD quote before visiting.
- This dealer typically doesn't add mandatory dealer add-ons. That's a good sign of transparency.
- Limited data (0 quotes). Score may change as we collect more information.
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 46 vehicles →$29,900
Median Price
36
Median Days Listed
3
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 Phoenix have transparency scores based on verified pricing data.
Frequently Asked Questions
Is M&m Diamond Cars Llc a good dealer?
M&m Diamond Cars Llc has a transparency score of 0/100, earning a Grade F. This score is based on their doc fees, add-on behavior, dealer markup, and data quality from 0 verified OTD quotes. This is below average. Consider getting quotes from other dealers in the area for comparison.
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 M&m Diamond Cars Llc in Phoenix, AZ, that has meant 0 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 F.
Pulled 0 quote records · Grades update as new data comes in · Dealers cannot pay to change their score.
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