entities. Constructors Under Article 6.3 of the FIA Sporting Regulations, "A constructor is the person (including any corporate or unincorporated body) which designs the Listed Parts set out in Appendix 6. The make of an engine or chassis is the name attributed to it by its constructor." These "listed parts" include the survival cell, the front impact structure, the roll structures and bodywork. However, if the chassis and engine are made by different entities, the constructor comprises both (e.g. McLaren-Mercedes, Lotus-Climax etc.), with the name of the chassis constructor being placed before that of the engine constructor. As both chassis and engine are included in the constructor name, chassis run with different engines are counted as two separate constructors and score points separately. This occurred for the last time in the season when the Tyrrell team ran their chassis powered by both Ford and Renault engines, scored points with both engines and thus finishing 9th as Tyrrell-Ford and 10th as Tyrrell-Renault in the World Constructors' Championship. Under article 6.2 of the FIA sporting regulations, "The title of Formula One World Champion Constructor will be awarded to the competitor which has scored the highest number of points". From the inaugural season of the World Constructors' Championship in up until the season only the highest-scoring driver in each race for each constructor contributed points towards the World Constructors' Championship (then officially as the International Cup for Formula One Constructors ); since the season points from all cars entered by each constructor have counted towards their championship total. Teams Since the season the FIA have required that Formula One entrants own the intellectual rights to the chassis that they enter, and so the distinction between the terms "entrant" and "constructor", and hence also "team", have become less pronounced, though the intellectual rights of engines may still be owned by a different entity. That season also saw the International Cup for Formula One Constructors be officially renamed to the World Constructors' Championship. Before this time, constructors were free to sell their chassis to as many other teams as they liked. Brabham and Lotus chassis were used extensively by other teams during the 1960s and 1970s and several quite competitive privateer teams never built their own chassis. Rob Walker Racing Team was the most successful example, being responsible for the first victories in Formula One for both Cooper and Lotus. The concept of a "works"