The McLaren Graziano gearbox is a compact, high-performance dual-clutch transaxle engineered to deliver rapid shifts, direct driver control and everyday usability. We examine how the seven-speed SSG operates, why McLaren selected it and what owners need to know about servicing, heat management and tuned vehicles.

CAD design, 3D scanning and additive manufacturing are making it possible to reproduce discontinued clips, brackets, trim pieces and other difficult-to-find car parts. However, producing a reliable component involves much more than simply scanning the original and pressing “print.”