Brabham-Repco

The Brabham-Repco combination produced one of the most unlikely and celebrated championship doubles in Formula 1 history. When the sport switched to 3-litre engines for 1966, many teams scrambled for power, but Brabham turned to the Australian firm Repco for a relatively simple, lightweight V8.

The result was a triumph of preparation and reliability. Jack Brabham won the 1966 drivers' championship in his own Repco-powered car, the only man to do so, and team-mate Denny Hulme took the 1967 title, with Brabham winning the constructors' championship both years.

While rivals chased complex, powerful engines, the modest Repco unit's dependability and the cars' light weight delivered back-to-back championships before the competition caught up.

Brabham-Repco showed that cunning and reliability could beat raw power. The 1966 and 1967 titles, including Jack Brabham's unique achievement, are among the most admired in the sport's history, a reminder that the smartest engineering solution is not always the most complicated.