Rosberg's first memorable season came in a year where no driver won more than two races. With Ferrari's season marred by the death of Gilles Villeneuve at Zolder, the career-ending injuries to Didier Pironi at Hockenheim and the turbocharged Brabham-BMW and Renault cars suffering from poor reliability (and not helped by Brabham continually changing between the Ford V8 and the BMW turbo), consistency won Rosberg the Drivers' Championship, despite his Williams FW07C using the normally aspirated Ford DFY V8 engine which was considered outdated and out-matched against the vastly more powerful turbo cars. Rosberg won the championship with a five-point gap to Didier Pironi, with the latter missing the last four races of the championship due to injuries sustained at the German Grand Prix. Rosberg's 1982 Championship proved to be the last World Championship win for the old Cosworth DFV engine which had been introduced to F1 by Lotus in (the DFY was a development of the DFV). To celebrate the victory, Frank Williams gave Rosberg two days off from testing and allowed him to smoke in the team mobile home.