About Circuit Margin
Circuit Margin is an independent resource covering Prepare the car, learn the rules, keep the margin.. We publish clear, practical, well-researched guides — the straight answers, without the marketing spin.
How we work
Our guides are built on current, mainstream understanding of the subject and checked against reliable sources. Where a topic is genuinely unsettled, we say so plainly rather than pretending certainty.
Editorial independence
Recommendations are based on evidence and experience, not on who makes a product. Any sponsored or affiliate content will always be clearly labelled.
Closed-course driving can cause serious injury, death, and property damage. This publication provides general education only; the current rules, officials, instructors, and emergency procedures of the specific event and venue control, and vehicle or safety-equipment work belongs with an appropriately qualified motorsport technician.
Corrections
Spotted something inaccurate or out of date? We would rather fix it than defend it — reach us via the contact page.