The people behind BMW Guidebook

Every guide on this site is researched and written by a BMW owner — not a content mill. Here’s who we are.

Marcus Reid — Founder & Lead Editor
Marcus has owned BMWs for over 15 years — from a high-mileage E90 328i that taught him everything about cooling systems, to his current G20 330i. Full profile

David Keller — Technical Specialist
David does all of his own BMW maintenance — brake jobs, cooling system refreshes, VANOS solenoids, valve cover gaskets, the lot. Full profile

James Whitfield — Ownership & Buying Advisor
James is the numbers guy: reliability data by model year, recall histories, engine comparisons, and the total-cost-of-ownership math that decides whether a used BMW is a smart buy or a money pit. Full profile