This manual covers the models produced from 1978 to 1980. The 928, a pioneering front-engined, rear-transaxle grand tourer, represented a significant departure for the marque, renowned for its V8 engine and balanced weight distribution. Awarded European Car of the Year in 1978, the 928 combined performance with luxury and comfort, featuring a naturally aspirated 4.5-liter V8 engine and a choice of manual or automatic transaxles. Its innovative design and engineering have made it a sought-after vehicle for enthusiasts and collectors alike, appreciated for its unique blend of sporty handling and GT capabilities.

This Technical Data Book / Dimensional Reference Manual provides highly specific and precise measurements critical for factory-level body repair, restoration, and quality control. It details dimensions and tolerances for structural measurements, component alignment, body panel gaps, and mounting points, including aspects of the body and chassis, engine and powertrain mounting, glass and trim, and wheel and tire mounting. Guidance on measurement techniques and alignment verification procedures is also included. This resource is intended for automotive professionals, restorers, and technicians who require exact specifications for ensuring the dimensional accuracy and structural integrity of the 928.