Driver and race setup let you manage drivers, race length, lap times, and fuel parameters. Stints rebuild dynamically to keep total race laps consistent, with pit and box lap edits automatically updating downstream stints. Each stint stores pit plans, tyre and fuel data, conditions, notes, and pit loss. A draft-first workflow ensures changes apply only on save, with clear alerts for unsaved edits and per-stint change history. Fuel and tyre tracking includes per-corner data, burn estimates, refuel needs, extra stop detection, and stint validation. Every save creates a shareable versioned link, supports calendar export per stint, and runs in a multi-language UI powered by i18next.