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Case Study: Side Mirror Supply for a supermarket chain in North America

Source:Case / Time:2026-09-18

Side Mirror for A supermarket chain in North America

A supermarket chain came to us with a side mirror programme for North America. The brief was ordinary and unforgiving at the same time: a fixed launch window, a landed cost that had to survive freight and duty, and a part that had to match an existing sample. This case records what was specified, what went wrong in sampling and how the bulk order landed.

The starting point

  • A specification nobody had written down
  • A fitment that looked right on paper and failed on the bench
  • Documentation that arrived after the container shipped

Side Mirror case study

What was specified

PartSide Mirror
ClientA supermarket chain
MarketNorth America
Volume5,000 pieces across 4 specifications
Base materialSintered Metal
Sampling rounds3
Delivery window4 weeks from PO to ex-factory
ComplianceECE R90

How it was resolved

  1. The specification was rebuilt around Sintered Metal and the tolerance locked before bulk.
  2. A pre-production sample was approved and kept as the golden reference.
  3. Production ran with in-line inspection and a mid-run photo report.
  4. Cartons were packed to the client's own barcode and ratio specification.
  5. Documentation shipped with the goods instead of after them.

Side Mirror production run

Result

  • 5,000 pieces delivered inside the 4-week window.
  • Unit cost held within 3.0% of the original quotation.
  • Inspection-related rejection stayed under 1.5%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.

Planning something similar?

Ask for the current catalogue and the specification sheet for this line.

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