Coverage
What the index reads, and what it does not.
11 Australian marketplaces, 571,336 advertised vehicles, as at 19 August 2026. Every figure below is the source's own advertised total, measured against the marketplace rather than estimated from what we happen to hold.
- Marketplaces
- 11
- Total advertised
- 571,336
- Carrying cars
- 10
- Carrying motorbikes
- 7
The last two count MARKETPLACES, not vehicles. 6 of the 11 carry both categories and the registry holds one advertised figure per source, so splitting the inventory between cars and motorbikes would count those 6 twice. The table below is per source for the same reason.
In the index
| Marketplace | Categories | Pathway | Advertised |
|---|---|---|---|
| carsales | Cars | 214,259 | |
| Autotrader | Cars · Motorbikes | 112,306 | |
| Gumtree | Cars · Motorbikes | 105,069 | |
| Drive | Cars | 86,290 | |
| OnlyCars | Cars | 22,452 | |
| bikesales | Motorbikes | 17,077 | |
| Pickles | Cars · Motorbikes | 5,919 | |
| eBay | Cars · Motorbikes | 4,921 | |
| Manheim | Cars | 1,817 | |
| Grays | Cars · Motorbikes | 823 | |
| Slattery | Cars · Motorbikes | 403 |
"Pathway certified" means the route to a source's full inventory is proven and measured. "Pathway building" means it is known and partially built. Neither is a statement about what ran last night. That is runtime state, and a marketing page is the wrong place to read it from.
Not in the index
One source is deliberately absent. It is named here rather than left for you to notice, because a gap you find during an evaluation costs both of us more than a gap stated on the way in.
Facebook Marketplace
Requires an authenticated session and a real browser. Reading it would mean operating logged-in accounts against a platform that forbids it, so it is out of scope rather than pending.
What "advertised" counts, precisely
It is the marketplace's own total
Each figure is read from the source's own result count for an unfiltered national search, the number it would show you, not inferred from rows we hold. That is what makes it a denominator: it measures the gap between what exists and what we have.
It is a listing, not a vehicle
One car advertised on two marketplaces is two listings. Cross-source de-duplication is a separate problem with its own error rate, and collapsing the two here would hide it inside a headline.
It moves, sometimes a lot
Auction inventory is volatile by nature. One house measured 823 and 667 on the same day. Figures carry an as-at for that reason, and a single reading is not a trend.
It is asked, not paid
Everything here describes what a seller advertised. No part of this dataset observes a transaction, and nothing in it should be read as a sale price.