The product is a hardback book titled "World of Rallying No. 7" written by Martin Holmes, focusing on Audi Sport in the 1980s. This book is a valuable piece of motor sport memorabilia, particularly in the realm of rally racing. It offers insights and information on the sport of rallying during that period, making it a must-have for fans and enthusiasts of motor sport and specifically rally racing. With a focus on Audi Sport, the book likely delves into the successes and challenges faced by the team during that era, providing a unique perspective on the world of rallying.