Twelve years of living with the E89 — daily, touring, modifying, breaking, fixing — compressed into the book the car always deserved.
Peter Bondar has owned and worked on BMWs for three decades, and specifically on the Z4 E89 since launch. His engineering background sits in aerospace and systems integration, which shows in how the book is organised: observation before assumption, evidence before opinion, and the discipline to say when something is not known.
The series started as a set of personal notes, grew into a reference shared with friends, and finally — after requests from workshops and forum readers — became the five-volume work now heading for publication.
Tested in the real world. Every procedure has been done on a real car. Every fault mode has been diagnosed in anger. Every upgrade has been installed and driven.
Photographed in workshops, not studios. Images show the car as you will find it — dirty, worn, occasionally broken — not as a showroom fantasy.
Written for owners. Not too dumbed down for the technical reader, not too obscure for the enthusiast learning.
Independent. No manufacturer sponsorship. No tuner paying for favourable coverage. Verdicts are the author's own.
The volumes are designed to be read in isolation or as a set. A potential buyer can start with Volume I alone. An owner troubleshooting a fault jumps to Volume III. A tuner planning a build-up works through Volumes IV and V in parallel. For specialists and workshops, the complete set is a customer-facing reference.
The E89 is too rich a subject for a single bound book. Over 1,100 pages and 1,000 images split naturally along the lines we've chosen — and a single volume this size would be physically unwieldy and priced out of reach. Splitting also lets readers buy only the volumes they need.
Each volume carries an edition number. Substantive corrections and additions are published as new editions. Digital buyers receive the corresponding PDF update at no additional cost for the first minor revision.
Launch announcements go to the mailing list first.