Until the 1970s, four-wheel drive was almost exclusively found on utility vehicles like the Land Rover and the Jeep. And almost nobody considered four-wheel drive, especially full-time four-wheel drive as a major safety feature to be built into any type of car. That is, unless you were tractor millionaire Harry Ferguson or former racing driver Tony Rolt. Ferguson shared the dream of Rolt and his original business partner, fellow racing driver Freddie Dixon by investing in their fledgling company, and giving it his name. The Ferguson Formula, as the product of Harry Ferguson Research Ltd eventually became known, incorporated full-time four-wheel drive, anti-skid braking and a fully automatic transmission. Starting in the days before Harry Ferguson became involved, to 1994, when Ricardo acquired the successor company, FF Developments Ltd, Traction for Sale tells the story of the companiesand the people behind them and covers all the well-known vehicles in the Ferguson Formula saga, including the Jensen FF; the Ferguson-Climax F1; the Ferguson-Novi, Paxton Turbine and Lotus 56 Indianapolis racing cars; the Lancia Delta, Peugeot 205 T16, Metro 6R4, Ford RS200 and Escort Cosworth rally cars; the AMC Eagle and the Schuler and Overfinch Range Rovers. And it covers those models less well known for FFD technology, such as the Chevrolet Safari 4x4, VW Golf Synchro, Ford Scorpio and Sapphire 4x4 and the Jaguar X-Type as well as those for which FFD supplied essential transmission components, such as the McLaren F1 and Jaguar XJ220 "... stuffed with images that complement a thorough but always readable text ... one surprise after another. An outstanding work" Octane magazine "... outlines the firm's sea of clever engineering. There's much racing too.' Motor Sport magazine "... well laid out, easy to read and superbly illustrated ... an important slice of engineering history has been preserved for future generations" Auto Tradition magazine Bill Munro drove a London taxi as his main living for over forty years. During that time he wrote a regular column and other articles for the cab trade press, as well as books and articles on London taxis, the London cab trade and other transport related topics. During his teens, at school I was actively involved with the British Hot Rod Association, helping to run model drag races and road and customs shows. He gained an interest in four-wheel drive in the late 1990s when he wrote Jeep, from Bantam to Wrangler, which prompted research into Ferguson Formula four-wheel drive. This in turn revived his interest in motor racing in all forms. Bill is married and lives in Surrey, England with his wife.