01

Freeze the candidate basis

Name VIN or exact new configuration, condition, included equipment, seller price, currency and expiry. If the vehicle changes, update inspection, preparation and document costs instead of retaining a total built for another car.

02

Add preparation before logistics

Include inspection, battery and charging tests, repair, tyres, cables, software handover, cleaning and protection. Separate buyer-choice cosmetics from mandatory safety, carrier or destination preparation.

03

Follow every custody cost

List collection, inland transport, storage, export documents, terminal, loading, freight, surcharges, insurance and transshipment. Put an owner and evidence date beside each. Include rebooking or delay exposure where schedules are uncertain.

04

Build destination charges with local advice

Use the correct customs value and classification basis, duty, VAT or sales tax, port, broker, inspection, technical change and registration rules. Mark authority-dependent figures provisional. Do not copy another country’s tax treatment.

05

Define three finish lines

Show delivered-to-port, customs-cleared and road-ready totals. Add destination charging or recovery, inland delivery and first service where relevant. This prevents a low port figure from being mistaken for usable ownership cost.

06

Stress-test the decision

Change exchange rate, freight, customs value, repairs and storage days. Keep a contingency appropriate to the open lines. Recalculate immediately when route, sailing, condition or classification changes. Add a delay scenario that includes terminal storage, demurrage where relevant, document amendment, charger or recovery attendance and rebooked inland delivery. EV-specific preparation can also move the total: an incompatible inlet, missing cable, damaged tyre or weak 12-volt battery may prevent normal release even when customs paperwork is complete. Assign each uncertainty to the party able to confirm it and put a decision date beside the line. The calculator should show whether one unresolved assumption can erase the price advantage of the chosen candidate, not merely produce a neat final number.

07

Delivery file close-out

Close this specific file by placing candidate price and expiry, preparation allowance and complete logistics quote in one dated candidate record. The reviewer should be able to confirm that every cost has a boundary and that uncertain tax is not false precision. Name the person or provider responsible for every unresolved point, add a realistic cost or consequence, and state what evidence will change the decision. If the VIN, version, condition or destination basis changes, reopen this file instead of carrying the previous conclusion into a different purchase.

08

Decision boundary

A useful decision records what is verified, what remains seller-stated and what was not tested. Attach a consequence and owner to each open item. Do not let a broad assurance replace a missing VIN record, charge test, condition image or destination opinion. Acceptance should be explicit: proceed, proceed with a priced condition, obtain more evidence, or reject. A replacement VIN never inherits an earlier acceptance.

09

Document discipline

Give images, scans, diagnostics and quotations a date, source and vehicle identity. Preserve originals before translation or editing. If custody, software, repair, route or candidate changes, identify which conclusions expire and repeat the affected checks instead of silently carrying them forward. Before inland release, read the same identity, propulsion, value and parties across contract, invoice, inspection and shipping drafts. Registration and customs remain separate destination checks.