Cornerstone Automotive
Monticello, MN·6 verified quotes*
Dec 9, 2025 – Apr 7, 2026· Score updated Apr 11, 2026
VerifiedTransparency Score Breakdown
- Doc fee ($383) is slightly above MN average ($343)
- Average dealer add-ons of $599 when present
- Price accuracy is excellent — quotes closely match advertised prices
Doc Fee Comparison
Recent Quotes
Verified out-the-door prices from real transactions
3 vehicle transactions — 6 individual quotes
Most Common Add-ons
Frequently Asked Questions
What is Cornerstone Automotive's doc fee?
Cornerstone Automotive charges a typical documentation fee of $383. The MN average is $271. This is based on 6 verified OTD quotes in our database.
Does Cornerstone Automotive add mandatory add-ons?
Cornerstone Automotive adds an average of $100 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 Cornerstone Automotive a good dealer?
Cornerstone Automotive has a transparency score of 92/100, earning a Grade A. This score is based on their doc fees, add-on behavior, dealer markup, and data quality from 6 verified OTD quotes. This is a well-above-average score, indicating transparent pricing practices.
At a Glance
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Try CarEdge ProTips for Cornerstone Automotive
- Minor add-ons (~$100) may appear. Ask what's included and if they can be removed.
- A-rated dealer! Focus on vehicle price negotiation—fees are already competitive.
- Doc fee ($383) is at or below national average. One less thing to negotiate.
- Dealer markup is about 9% below listing (excluding taxes). This dealer keeps fees very low.
*Information provided for general informational purposes only. Scores are independently calculated and do not imply endorsement of or affiliation with any dealer. Verify all information independently before making a purchase decision. See our Terms of Service.