Car Quality Score
Get a quick price snapshot for any make/model/year/trim — average asking price, market low and high, and whether listings are trending up or down. Useful before negotiating or listing.
OBD-II Quick-Scan Guide
Triage OBD-II code families before you buy — severity, walk decision and negotiation lever.
Plug in any $20 ELM327/BlueDriver scanner and check whether any stored or pending codes fall into these families:
How It Works
The tool aggregates listing data from major US used-car marketplaces, segments by trim and mileage band, and returns 10th/50th/90th percentile prices plus a 30-day trend.
How to Use This Calculator
- Pick make, model, year and trim.
- Enter mileage and ZIP (optional, regional adjustment).
- Calculator returns price percentiles and 30-day trend.
Worked Example
Reference Table
Negotiation room shrinks for hybrids, trucks and 3-row SUVs (high demand). Wider for sedans and coupes.
| Vehicle situation | Negotiation room |
|---|---|
| Dealer listing, in-demand model | 3–8% off asking |
| Dealer listing, slow-moving model | 8–15% off asking |
| Certified pre-owned (CPO) | 2–5% off asking |
| Private party, popular model | 5–10% off asking |
| Private party, niche model | 10–20% off asking |
| Auction or wholesale | Already at market low |
Frequently Asked Questions
How current are the prices?
Updated monthly. Major price shifts (chip shortage, interest-rate change) take 30–60 days to fully reflect.
Are trade-in values different?
Yes — usually 15–25% below retail market. Use Kelley Blue Book or Edmunds for trade-in specifically.
