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Carnet

Workshop management · Vehicle passport

The history should belong to the car.

Carnet runs the diary, the job, the inspection, the parts and the books. Every completed job also writes to a permanent record the vehicle keeps, verifiable by whoever owns it next.

No card. The trial creates a real workshop you keep.

Drag to turn. The marks are real entries on this vehicle.

Contradiction · Recorded between owners

The odometer went backwards

It read 67,410 in April and 62,000 in September. Every reading since has been consistent, so a garage comparing its own last two sees nothing wrong. Only the whole sequence shows it.

The problem

A car outlives every system that ever recorded it

Three garages, two owners and eleven years later, the folder in the glovebox is a stack of receipts and a guess. The work was real. The evidence is gone.

The garage owns the record

Your history lives in your system. When the customer moves away, or you close, it goes with you. The car keeps nothing.

Nobody can verify a claim

"Full service history" means a folder of paper anybody could print. A buyer discounts what they cannot check, and the seller pays for it.

The next garage starts blind

A car arrives with no record of the cambelt, the fluid, or what the last workshop already advised on. The same checks get done twice and paid for once.

What makes this different

A record the vehicle keeps

Every completed job writes entries against the car itself: the work, the parts, the mileage, the photographs. Not against your customer record. Against the VIN.

It transfers on sale
Ownership changes hands and the history goes with the car. The new owner sees everything, including what a workshop they have never heard of did in 2019.
It cannot be quietly edited
Entries are appended and hash-linked. Correcting one leaves both versions visible. A history that can be rewritten is worth exactly as much as the folder it replaced.
It is worth money at resale
A verifiable record is the difference between a buyer taking your word for it and a buyer checking. That difference has a price, and the seller has been paying it.
It works even where Carnet does not
A passport opens as a public link. The next garage needs no account, no login and no relationship with us to read what you wrote.

An entry, as the next owner sees it

Front brake pads and discs replaced

84,102 mi

Pads at 2mm on inspection. Discs lipped. Photographs attached.

12 March 2024 · Pennine Motors

Advisory: rear tyres approaching limit

84,102 mi

Declined by owner at the time. Recorded either way.

12 March 2024 · Pennine Motors

The declined advisory is in the record too. A history that only shows what was sold is a sales document, not a history.

What it does

The whole job, from the phone call to the ledger

One data model, so the estimate the customer approved is the job the technician worked, is the invoice they paid, is the entry in the accounts. Nothing is re-keyed.

Diary and jobs

Bay-level scheduling with real capacity. Fourteen job statuses that refuse the transitions that make no sense, and say why.

Inspections with photographs

Structured checks with measurements and pictures. A customer approving brake work can see the pads.

Estimates the customer decides on

Sent as a link, approved line by line. Work exceeding what was approved needs approving again.

Parts and purchasing

Weighted average cost, reservations against jobs, reorder suggestions from actual usage, three-way bill matching.

Invoicing and the ledger

Double-entry posted from the work itself. Trial balance, profit and loss, balance sheet, VAT, aged debtors.

People and productivity

Attended, clocked and sold hours side by side, so utilisation and efficiency stop hiding each other.

A Tuesday

What the flow actually looks like

Every step below writes to the same job. The passport entries at the end are produced by the work, not typed in afterwards.

  1. 01

    Books in

    Customer calls. Booking takes a bay and a technician, and checks the day has room for it.

  2. 02

    Inspected

    Technician works the checklist on a tablet. Two reds and three ambers, with photographs.

  3. 03

    Approved

    Estimate goes out as a link. The customer approves the brakes and declines the tyres.

  4. 04

    Invoiced and recorded

    Parts leave stock, time is costed, the invoice posts to the ledger, and the car keeps the history.

Pricing

Priced per bay, published in full

Three plans, and unlimited staff accounts on every one. The vehicle passport is in all of them, because a network nobody can join is not a network.

Core

A single workshop running the everyday work

£39 /bay /month

Complete

Most chosen

A workshop that wants the books to be right, not reconciled later

£69 /bay /month

Group

More than one site, read as one business

£99 /bay /month

See what each plan includes

Start with one car

Put the next job through it. At the end you will have an invoice, a set of accounts that balance, and one vehicle with a history it keeps for the rest of its life.