BUYING
Every car you sell should find its own replacement.
A store that sells 60 used cars a month has to buy 60. Most do it by walking the lane and remembering. The replacement loop does it from the sold record, car by car, and hands the buyer a list instead of a memory.
The loop
A 2021 F-150 XLT sells on Tuesday with $2,900 front gross after 31 days. That deal is now a data point in a cohort: 2021 F-150 XLT, 40k to 60k miles. The cohort says the store has sold twelve of these this year at a median of 31 days. The store should own another one.
The replacement loop takes that cohort and asks the block one question: which 2021 F-150 XLTs in the right mileage band are running at Manheim this week, within the store's radius, with a condition grade over the floor and no mechanical announcements? The answer on a typical week is a dozen on Simulcast and a handful on OVE. The buyer sees them Wednesday morning with lane, time, light, grade, MMR and the store's own numbers for the cohort beside each one.

Why stores do not do this today
- The sold record and the run list live in different systems. The DMS knows what sold. The auction portal knows what is running. Nobody joins them.
- Memory replaces the record. The buyer remembers the F-150 and forgets the Encore that sold in 12 days with $1,900 front.
- The lane rewards the wrong instinct. A clean-looking car at a soft price gets bought because it is there, not because the store has ever turned one.
What the board shows
Each sold cohort from the last 30 days is a row: units sold, median days, median front and total gross, what is in stock now, and the lead count those cars drew. Beside it, the replacements: Simulcast cars on this week's run and OVE cars live right now, each with the light, the grade, the MMR, the distance, and a link into the market analysis and the Manheim listing where the proxy bid goes in. On one store with 189 sales in the trailing 30 days the board produced 160 cohorts; the F-150 cohort alone surfaced 131 Simulcast and 12 OVE replacements.
What breaks it
Three things, all fixable. A sold feed that lags: if the DMS export arrives weekly, the loop runs a week behind and the replacement is bought by someone else. Cohorts that are too fine: trim-level grouping with one sale each tells you nothing; the board groups by trim only when there are enough sales. Announcement text that lies: a replacement with "green light" in one announcement and "yellow light" in another is treated as yellow, and the filter reads the condition report's mechanical section, not just the listing.
The exercise of replacing cars becomes automatic. Every sale produces its own short list for the next sale day, in the buyer's hand, with the store's own turn and gross beside every candidate.
Questions dealers ask
How fast after a sale does the replacement show up?
The next morning after the sold record arrives. With a daily DMS feed, a Tuesday sale has replacements on Wednesday's board.
Does it only show cars within my radius?
The default ring is 250 miles with transport cost by real mileage on every candidate. The ring is a store setting.
Can I bid from the board?
The board links to the Manheim listing where the proxy bid goes in. There is no bid API from Manheim, so the bid itself is placed on Manheim.
DEALERCORTEX AI