This book explains how the HF 4WD evolved over the years – first into the Integrale with its original 8-valve engine, then the Integrale 16V, and ultimately into the Integrale 16V Evo 1 (or 'Deltona', as it was affectionately known). This compact, five-door Lancia dominated world-class rallying for six years, winning innumerable events, World Championships for Drivers, and World Championships for Manufacturers. Alongside the cars, driving heroes such as Markku Alan, Didier Auriol, Miki Biasion, Juha Kankkunen and Carlos Sainz also became legendary in this period.