90 days agoILLUSTRATIVE ASKING-PRICE TRENDSample end
Active listingsDeduplicated vehicles
Days listedMedian observation
Price cutsShare over 30 days
Your personal market desk for every generation of 911.
CONCEPT PROTOTYPE: All market figures and events are synthetic samples. No live data feeds or notifications are connected.
The generation board
| Market | Asking median | 90D change | Trend | Inventory | Days listed | Follow |
|---|
Track the advertised market.
Price direction · Seller behavior · SupplyWhat sellers are asking for comparable cars. This is not a completed-sale average.
Follow each vehicle over time to measure seller reductions without confusing new inventory with falling prices.
Needs dated listing snapshots and vehicle matching. Removed listings remain sale-unconfirmed.
Separate underlying price direction from changes in the mileage, age and specifications of available cars.
Needs sufficient comparable observations, validation and uncertainty bounds.
How we track the market
Our core dataset is advertised listings observed repeatedly. We track asking-price medians, individual price cuts, active inventory and days observed. These measures describe the advertised market; they do not establish final transaction prices. Verified sales can supplement the analysis later.
| Evidence layer | Potential source | Prototype status |
|---|---|---|
| Listing observations | Licensed inventory APIs and dealer feeds | Synthetic examples only |
| Completed dealer sales | Transaction-data license; TrueCar is a candidate | No agreement or integration |
| Completed auction sales | Authorized auction results feeds | No agreement or integration |
| Fair-value range | Pursuit model using permitted comparable records | Not built or validated |
Every production measure should show its source, observation window, sample count, update date and coverage limits. Auction results must distinguish hammer price from buyer fees; dealer records must identify whether taxes and fees are included. Never apply a generic discount to asking prices and label it an actual sale price.
Keep generations, facelifts, trims, body styles, transmissions and regions separate. Adjust for mileage, condition and verified options. Sparse segments show insufficient data rather than a precise-looking daily value.
Research references: TrueCar data and licensing FAQ · Market-average methodology. No TrueCar data is imported or licensed in this prototype.
Start your next pursuit
Explore the original sources. These are discovery links, not imported inventory.
Bring a Trailer
Explore BaT ↗Elferspot
Explore Elferspot ↗CLASSIC.COM
Explore CLASSIC.COM ↗Four views of every pursuit
| View | Question | Comparison rule |
|---|---|---|
| Market over time | Are asking prices rising or falling? | Same generation, facelift, variant, body, transmission and region |
| Price versus mileage | What premium do low-mileage cars carry? | Compare similar model years and specifications |
| Price versus model year | Where is the age-related price gap? | A cross-sectional relationship, not a forecast of next year |
| Supply and reductions | Are sellers becoming more flexible? | Deduplicate cars, retain price history, distinguish relisting from new supply |
Production reporting will show observation counts, mileage mix, collection dates and coverage. Flag small samples and unverified options. Exclude obvious data errors and separate damaged or modified cars. No live observations are connected in this prototype.
Methodology: trust is the product
This prototype uses synthetic data. Production needs licensed observations and source-specific display rights. Keep asking prices, confirmed sales, unsold bids and modeled estimates separate.
Normalize by generation, facelift, variant, transmission, body, mileage, condition and region. Publish sample counts, coverage and freshness. Delisted does not mean sold. Use longer observation windows when daily changes are statistical noise.
The business behind the pursuit
Free market desk
Generation pages, basic trends, one saved pursuit and a weekly market briefing. Videos and search bring buyers in.
Plus: $15-25 / month
Test exact-spec alerts, listing price histories, comparable asking prices, market changes and exports. Also test a $39-59 short-term buyer pass.
Specialist network
Disclosed PPI and transport referrals, newsletter sponsors and eventually dealer tools. Payment never changes market rankings.
Launch narrow. Earn trust.
Start with US 991.2 and 992.1 Carrera coupes, separated by variant. Collect daily snapshots from authorized sources, match vehicles by VIN where available, and audit options and mileage. Publish weekly or monthly trends with sample sizes. Recruit 20 active buyers and test whether saved-spec alerts bring them back.
Core workflow: licensed feed → vehicle deduplication → Porsche taxonomy → comparable listings → saved-spec alerts. Daily observations show activity; rolling trends show the market. The launch product does not depend on private dealer transaction records.