Zastron Labs

DATA PRODUCTS

The products I build with data.

Zastron Labs builds its own data products. Cario is the first: it tells a Corolla owner what service is due, what it should cost in złoty, and what the car is worth. All of it on real, sourced numbers.

First product · Poland · Pre-launch, waitlist open

Cario

Most people run a car on guesses. Cario replaces the guess.

It reads the real numbers behind a Toyota Corolla in Poland: what service is due, what it should cost in złoty, what the car is worth, and what tends to fail. Then it tells the owner, plainly.

  • 45 397 Corollas on Polish roads
  • 47-point inspection
  • 32 parts priced in złoty
Join the waitlist Explore Cario

More products are in the lab; they show up here when they are real, not before. Cario’s data is live right below. Jump to it.

CARIO · LIVE DATA

Your Corolla, by the numbers.

Move the mileage. Pick the year and engine. Everything here is real, sourced, and updates as you go. Where I have no data for a combination, it says so.

LIVE · COMPUTED FROM REAL POLISH MARKET DATA

150 000 km

MARKET VALUE

about 40 400 to 52 500 zł

2016 · 1.6 Valvematic · 130 000 to 180 000 km · 8 samples

SOURCE: CARIO VALUE RESEARCH · 84 PRICE ROWS

MOT RISK

about 1 in 6 fail

16.42% at 140 000 to 200 000 km

SOURCE: UK MOT TESTS · AURIS, SAME PLATFORM

WHAT IS NEXT

150 000 km service

Water pump, Shock absorbers, Coolant · about 1 500 to 2 500 zł

SOURCE: CARIO SERVICE COST RESEARCH

THE FLEET

1 of 45 397

Corollas on Polish roads

SOURCE: CEPiK

VALUE BY MILEAGE

2016 · 1.6 Valvematic

Corolla E170 market value by mileage Value in złoty falls as mileage rises, for the selected year and engine. The amber dot marks your current mileage. 28 000 52 000 75 000 ~47 100 zł

SOURCE: CARIO VALUE RESEARCH · 84 PRICE ROWS

THE NUMBERS

Nothing here is made up.

Six figures that anchor everything on this page. You are already moving three of them above. My rule: every number traces to a source, and missing data says missing.

45 397 Corollas on Polish roads CEPiK

221 847 MOT tests analysed UK DVSA MOT

47 inspection checks Cario inspection template

32 parts priced Cario research

15 maintenance systems Cario Fix-It Library

108 known failure patterns Cario Fix-It Library

WHAT FAILS, AND WHEN

Failure rises with the odometer.

UK MOT data for the Auris, the Corolla's platform twin. Mechanical failures carry across; body-specific findings differ. 221 847 first tests.

FAIL RATE BY MILEAGE
MOT fail rate by mileage band Fail rate rises from 8.12% under 80 000 km to 18.33% over 260 000 km, with a dip at the 200 000 to 260 000 km band. 0% 10% 20% 18.33%

Source: UK DVSA MOT · Auris platform proxy · 221 847 tests

TOP FAILURE REASONS
Top six MOT failure reasons by share of failed tests Tyre tread depth is the single largest cause of failure, at 12.61% of failed tests. Tyre tread depth 12.61% Brake pad worn below 1.5mm 10.80% Stop lamp missing or inoperative 9.92% Tyre seriously damaged 9.88% Wiper blade not clearing screen 9.17% Headlamp inoperative 9.14%

Source: UK DVSA MOT · Auris platform proxy · 221 847 tests

Cario watches these numbers for your car. Join the waitlist →

THE FLEET

How many are out there.

A full national census, not a sample. CEPiK scanned 1 070 191 Toyota records to get these two numbers.

45 397 Toyota Corolla E170, 2013 to 2019 CEPiK

64 458 Toyota Auris E170, the platform twin CEPiK

TOYOTA MODEL MIX, POLAND
Top six Toyota models registered in Poland The Corolla is the second most registered Toyota model in Poland, behind the Yaris. Yaris 260 037 Corolla 225 468 RAV4 111 403 Auris 89 558 C-HR 87 041 Avensis 70 051

Source: CEPiK

WHAT PARTS COST

Market price, and what the dealer charges.

Market range is aftermarket and mid-tier. The OE triangle is the Toyota genuine part, always dearer.

Market range (aftermarket, mid-tier) Dealer genuine (OE)
Parts price ranges in złoty for twelve headline parts, with the OE genuine price where published Engine oil has the widest gap to its OE genuine price: a market range of 110 to 250 zł against an OE price of 566 zł. 0 300 zł 600 zł Engine oil (4 to 5 L pack) 566 Oil filter 72 Air filter Cabin filter Spark plugs (set of 4) Battery Front brake pads (axle set) 440 Front brake discs (pair) Rear brake pads (axle set) Front struts (each) Drive belt (each) Coolant (5 L, ready-mix) 275

Source: Cario 32-part curated research

Cario watches these numbers for your car. Join the waitlist →

THE 47 CHECKS

Forty-seven checks, four that matter most.

4 of the 47 are the ones that can strand you or hurt someone: shape-marked in amber, called out separately below because the data does not say which section they fall in.

The 47-item inspection template across five sections, with 4 critical items Exterior 9, Interior 8, Under hood 11, Underneath 10, Test drive 9, totalling 47. 4 of the 47 are critical. Exterior 9 Interior 8 Under hood 11 Underneath 10 Test drive 9 4 critical A fault here can strand you or hurt someone.

Source: the Cario inspection template, all 47 checks

This is one car’s worth of truth. Cario does this for yours.

Cario is feature-complete and not yet in the stores. Leave an email and I will tell you the day it ships.

One email at launch. Maybe one or two honest progress notes before that. Nothing else.

Explore Cario · Get in touch

Everything on this page came out of the same method I sell: messy public records in, numbers you can act on out. See how I work →