Tesla listed 46 demo Cyberbeasts in one day. None lasted a week.

Between our checks on September 16 and 17, Tesla's own count of Cybertrucks for sale in the US went from 79 to 146. That's the highest number Tesla has shown since we started recording its count in late July. Most of what arrived was new: of the 88 listings that appeared in our records that day, 50 were new trucks, and 46 of those were the same thing, a Cyberbeast marked as a demo.

Those 46 were priced between $94,290 and $104,400 when we first saw them, with a middle price of $99,500. The other new arrivals were three Premium AWD demos and one Premium AWD still at the factory, and the remaining 38 listings were used trucks.

They didn't last. By the end of the next day, 27 of the 46 had left Tesla's listings. Eight more went on the 19th, and the last of them was gone by September 23, six days after the batch appeared. Three dropped off, came back briefly, and then left for good.

We can't tell you every one of them found a buyer. A listing leaving Tesla's inventory usually means someone bought it, but it can also mean the truck was reserved, moved or pulled, and Tesla doesn't say which. What we can say is that a whole batch of the most expensive Cybertruck came and went inside a week.

The rest of the inventory followed. From 146 on September 17, Tesla's count fell almost every day: 115, 100, 94, a small bump to 107 on the 21st, then 96, 89, 79, 68, 61, 59, 48 and 34. When we published on September 30, the last day of the third quarter, it read 25.

That's about nine trucks a day leaving the listings. When a similar wave landed in August, 98 trucks on August 6, it took until August 30 to fall to 6, about four a day. This one moved more than twice as fast.

Tesla's own count at our last check each day (5 pm ET), new and used together. September 30 was read live when we published.

As of this evening Tesla lists 25 Cybertrucks nationwide: 11 new and 14 used. Seven of the new ones are Cyberbeasts and four are Premium AWD, and six of the 11 are demos. The used side leans Cyberbeast too: eight of the 14, alongside four Premium AWD, one All-Wheel Drive and one Long Range Rear-Wheel Drive.

The cheapest Cybertruck Tesla lists right now is a used one at $67,300. The cheapest new one is $84,990.

Tesla counts its deliveries by quarter, and this clearance lines up with the last two weeks of Q3. That's our read of the timing, not something Tesla has said. What we can check is what comes next: the last three batches landed on August 6, September 4 and September 17, between two and four weeks apart. If that holds, the next one should arrive in October, and we'll be watching the count when it does.

If you're shopping, the practical lesson is simpler: when a batch lands, it moves fast. More than half of this one was gone the next day.

The daily counts are Tesla's own national total for new and used Cybertrucks, read at our last check of each day (5 pm ET); September 30 was read live when this report was published. Our own tracked list matched Tesla's count on every day in this window.

The September 17 batch (trims, demo status, prices, and when each listing left) comes from our own timestamped record of every listing. We count a listing as gone only after it has been missing from Tesla's full national feed for at least six hours, so a brief glitch doesn't count. Three of the 46 still came back once before leaving for good, and we count the day they left for good.

Leaving the listings is not the same as selling. Tesla doesn't publish why a listing disappears, so we never call it a sale.