# Pit Trace

> Pit-wall F1 engineering intelligence organized by race weekend.

Pit Trace is an F1 engineering intelligence tool that tracks confirmed FIA car-presentation upgrades, power-unit allocation, PU grid, parc fermé changes, and steward start penalties, organized by race weekend.

Primary URL: https://pit-trace.com
Defensive alias: https://pit-trace.app (redirects to .com)

## What it is

Pit Trace tracks confirmed FIA car-presentation upgrades, power-unit allocation / usage, parc fermé changes, and steward start penalties: the official new parts, engine elements, and steward start sanctions teams take each weekend. Charts and pulse views index into source rows with URLs: they do not replace the rows.

## What it is not

Not a live-timing app, standings board, race-pace tool, pit-stop tracker, or Formula 1 branding clone. Do not treat it as a race-stats product. Results are shown as context from the FIA classification once available (Grand Prix and Sprint). They do not show whether any listed part worked.

## Key public surfaces

- /: weekend board and season calendar
- /tech: season package mosaic (FIA upgrade taxonomy; ?major=1 = 3+ zone coverage)
- /tech/upgrades: 2026 F1 upgrades by team and component from confirmed FIA documents, with the declared reason (Performance, Circuit specific, Reliability) and new vs revised. Markdown twin: /tech/upgrades.md
- /pu: F1 power unit usage for 2026: PU elements confirmed in FIA documents vs the legal limit per driver, constructor totals, and which are at or over the limit.
- /pu.md: Markdown twin of /pu (not in the sitemap)
- /pu/suppliers: 2026 F1 power unit suppliers: Mercedes, Ferrari, Honda, Red Bull Ford and Audi, the teams each one powers, and PU elements confirmed in FIA documents. Markdown twin: /pu/suppliers.md
- /circuits and /circuits/{slug}: circuit demand profiles + confirmed upgrade history
- /circuits/methodology: How Pit Trace rates downforce, braking, traction, tyre and cooling demand at each F1 circuit: sources, thresholds, status labels and limits.
- /races/{id}: weekend upgrades, PU, parc fermé, Start (steward) penalties, and (once published) a neutral FIA finishing-order classification
- /teams and /teams/{id}: confirmed FIA upgrades and PU element usage per constructor. Markdown twins: /teams.md and /teams/{id}.md (not in the sitemap)
- /glossary/fia-car-presentation: FIA car-presentation upgrade rows
- /glossary/power-unit-elements: PU allocation; Confirmed B8.2.8 PU grid vs Inferred vs Start
- /glossary/f1-power-unit: An F1 power unit is the car's whole hybrid drive: the internal combustion engine (ICE) plus turbocharger, exhaust, MGU-K, energy store, control electronics and PU ancillaries. Pit Trace counts how many of each element every driver has used, from FIA documents. Markdown twin: /glossary/f1-power-unit.md
- /glossary/parc-ferme-start-penalties: locked-car swaps vs steward Start
- /guides/track-f1-upgrades: where to see every F1 team's confirmed FIA upgrades each race weekend, plus PU elements, PU grid, parc fermé changes, and steward start penalties
- /guides/f1-2026-power-unit-penalties: 2026 PU elements used vs limit per driver, and every confirmed FIA PU grid penalty (B8.2.8), each linked to its FIA document
- /about: what Pit Trace is, where the rows come from, and who runs it
- /faq: FIA car presentation, how PU grid differs from a start penalty, when rows are added, and that the site is free

## Team season pages

Season upgrade and PU timelines per constructor: new parts and engine elements by team. Each HTML page has a markdown twin.

- /teams
- /teams.md
- /teams/team-alpine: Alpine
- /teams/team-alpine.md
- /teams/team-aston: Aston Martin
- /teams/team-aston.md
- /teams/team-audi: Audi
- /teams/team-audi.md
- /teams/team-cadillac: Cadillac
- /teams/team-cadillac.md
- /teams/team-ferrari: Ferrari
- /teams/team-ferrari.md
- /teams/team-haas: Haas
- /teams/team-haas.md
- /teams/team-mclaren: McLaren
- /teams/team-mclaren.md
- /teams/team-mercedes: Mercedes
- /teams/team-mercedes.md
- /teams/team-rb: Racing Bulls
- /teams/team-rb.md
- /teams/team-redbull: Red Bull Racing
- /teams/team-redbull.md
- /teams/team-williams: Williams
- /teams/team-williams.md

## Source of truth

- Confirmed rows come from FIA PDFs (car presentation + PU docs).
- Steward Decision / Infringement PDFs feed Start (pit-lane / technical grid) and confirmed B8.2.8 PU grid rows. Heatmap overages are Inferred only: never bare PU grid.
- News RSS is a reported overlay; overlapping news is marked superseded_by, not merged onto FIA.
- Write surfaces are private and should not be indexed.