For independent UK used-car dealers

Your whole auction catalogue, scored in minutes.

Email us the catalogue. Every car comes back marked Strong Buy, Consider or Avoid - our verdict, powered by AutoTrader's Retail Ratings. No more typing regs in one by one the night before a sale.

30 days free No card needed to try Never touches your AutoTrader account
catalogue-tuesday.xlsx · 284 cars Scored in minutes
VerdictRegVehicleMileageRating
Strong BuyAB12 CDEVW Golf 1.5 TSI Life41,20092
Strong BuyFG34 HIJKia Sportage 1.6 GDi 233,85089
ConsiderKL56 MNOBMW 320d M Sport68,40071
AvoidPQ78 RSTVauxhall Insignia 2.0 CDTi94,10043
Illustrative example only - ratings shown are made up, not real AutoTrader data. Verdicts are Cortex Growth's, based on AutoTrader's Retail Ratings.
The night before the auction

Checking a catalogue properly takes hours. So nobody does.

A 300-car catalogue means 300 AutoTrader lookups. Most dealers get through the first 40 or 50, then buy the rest on gut. That's where the money leaks.

Hours lost every sale

Reg in, wait, read, note it down, next car. Do that 300 times and your evening's gone before you've shortlisted a single lot.

The good ones get missed

The strongest retailer in the sale might be lot 212. If you only checked the first 50, someone else drives it home.

Slow sellers tie up cash

A car that looked cheap on the day can sit on your pitch for 90 days. That's stock money you can't spend at the next sale.

How it works

Send it. We score it. You bid with a plan.

No software to install, no logins to share. If you can send an email, you can use it.

1

Email us your catalogue

Forward the auction catalogue to your dedicated Cortex Growth address, or upload it on a form. All we need is a spreadsheet with a registration and mileage for each car.

CSV or Excel, however it arrives
2

Every car gets scored

Each vehicle is checked against AutoTrader's Retail Ratings automatically. No manual lookups, no copy-and-paste, no lots skipped because you ran out of evening.

Powered by AutoTrader's Retail Ratings
3

Scored sheet back in minutes

You get the full catalogue back with our verdict on every car - Strong Buy, Consider or Avoid - plus a link straight to each listing.

Bid with confidence
What you get back

One sheet. Every car. A clear verdict.

The scored spreadsheet gives you everything you need to work the sale: our verdict on each car, the full vehicle detail, its AutoTrader Retail Rating and a link to the listing.

Illustrative example - every figure below is made up, not real AutoTrader data
VerdictRegMakeModelDerivativeYearMileageRetail RatingFuelTransListing
Strong BuyAB12 CDEVolkswagenGolf1.5 TSI Life 5dr202141,20092PetrolManualView
Strong BuyFG34 HIJKiaSportage1.6 GDi 2 5dr202233,85089PetrolManualView
ConsiderKL56 MNOBMW3 Series320d M Sport 4dr201968,40071DieselAutoView
ConsiderUV90 WXYNissanQashqai1.3 DiG-T Acenta202055,70067PetrolManualView
AvoidPQ78 RSTVauxhallInsignia2.0 CDTi SRi 5dr201794,10043DieselManualView
VerdictRegistrationMakeModelDerivativeYearMileageAutoTrader Retail RatingFuelTransmissionListing link
Why it pays for itself

One extra good buy covers the month. Easily.

A good used car typically makes an independent dealer somewhere between £700 and £1,200 in margin. Find one strong retailer a month that you'd have missed in an unchecked catalogue, and the tool has paid for itself several times over.

  • Score the whole catalogue, not just the lots you had time for
  • Surface the strong retailers buried at lot 200 and beyond
  • Skip the slow sellers before they eat 90 days of stock money
  • Get your evenings back before every sale
Cortex Growth, per month£250
Typical margin on one good used car£700 - £1,200
Extra good buys needed to break evenOne
One extra find a month returns3x - 5x

Margins vary by stock and site. The £700 to £1,200 range is a typical figure for a good used car, not a promise of results.

Pricing

One plan. Unlimited catalogues. Try it free for 30 days.

Run your real catalogues through it for a month. If it isn't finding you cars and saving you hours, walk away and pay nothing.

Cortex Growth
£250 / month
First 30 days free · no card needed to try
  • Unlimited auction catalogues, scored in minutes
  • Every car checked against AutoTrader's Retail Ratings
  • Clear verdict on each: Strong Buy, Consider or Avoid
  • Full vehicle detail plus a link to every listing
  • Your own dedicated email address - just forward and go
  • Cancel any time, no contract, no notice period
Start your 30-day free trial

After the trial it's £250/month. Cancel any time.

Questions

The things dealers ask first.

What do I actually send you?
Your auction catalogue as a spreadsheet - CSV or Excel - with a registration and mileage for each car. That's it. Most auction houses already send catalogues in exactly that format, so usually you just forward the email.
How fast does it come back?
Minutes. Send a catalogue over and the scored sheet lands back in your inbox while the kettle's still on. Plenty of time to work the sale properly, even if the catalogue only drops the night before.
Is it really free for 30 days?
Yes. No card needed to try it. You get a full month of scoring your real catalogues before you pay a penny, so you'll know exactly what it's worth to you before any money changes hands.
Does it touch my AutoTrader account?
No. We never ask for your AutoTrader login and nothing on your account changes. The scoring is powered by AutoTrader's Retail Ratings, but it runs entirely on our side.
Are the verdicts AutoTrader's?
No. Strong Buy, Consider and Avoid are Cortex Growth's verdicts, based on each car's AutoTrader Retail Rating. The rating comes from AutoTrader; the call on whether it's worth your bid is ours. The sheet shows you both, so you can always see the working.
What happens after the trial?
It's £250 a month for unlimited catalogues, and you can cancel any time. No contract, no notice period. If it stops earning its place, stop paying for it.

Score your next catalogue before you bid on it.

Dealers are already running every sale through it. Your first 30 days are free, so the only thing you're risking is finding out how many good cars you've been missing.

Start your 30-day free trial
No card needed to try · £250/month after · cancel any time