Car Resale Aggregator
Aggregates cars for resale from multiple marketplaces into one searchable place.
Built for the person selling rather than buying: one view of what cars like theirs are listed at, across every marketplace, so the asking price is set from evidence. It follows those listings until they sell and reports what they actually went for.
What a v1 does5 features
- Comparable listings pulled from every major marketplace at once
- Asking price versus sold price, tracked over time
- How long comparable cars sit before selling
- A suggested asking price with the comparables behind it
- Alerts when the local market for that model moves
The market
CarGurus takes around $232M a quarter from its marketplace, mostly from dealers, and draws 30 to 35 million monthly visitors. Carvana earns on the cars it sells. Neither charges shoppers to use it, so a $6 a month consumer subscription would be a different model to anything proven here.
Where these numbers come from
| Company | Earns | Reach | Source |
|---|---|---|---|
| Carvana | $20.3B revenue, 2025 (+49%) | 596,641 retail units sold, 2025 | Public filings |
| CarGurus | ~$232M marketplace revenue, Q3 2025 (+14%) | ~30–35M monthly unique visitors | Public filings |
| Cars.com | Public marketplace comp | Not published | Model, not a disclosed figure |
Why this audience
This audience is interested in what cars are worth rather than in cars as objects - deals, resale value, what something will fetch. They are pricing from memory and anecdote. Comparable listings across every marketplace, followed until they sell, is evidence for a judgement they already make.
Before it can launch
- Listing data through marketplace APIs and dealer feeds rather than scraping
What it earns
Drag me Every figure recalculates as you go.
0.063% of 1.6M followers · capped at 50,000
Opens on the price this idea was costed at, $6.
1,000 paying — 0.063% of 1.6M followers — × $6 a month = $6,000 a month
Fifty thousand paying users is the ceiling every one of these pages is drawn against, not a forecast. It opens at a thousand, the bottom of the range, so the first figures you see are the modest ones. What the cap buys is comparability: the same range on every app, and the percentage of the audience it takes as the number that moves.
Is this the one for your audience?
We fund it, build it, and run it. You bring the audience and take a share of the revenue. Nothing to pay and nothing to build.