Question: In which year did this Austrian former Formula One driver who finished third at the 1978 Brazilian Grand Prix win the F1 World Drivers' Champion first?
Sentence (from "Niki Lauda"): Andreas Nikolaus "Niki" Lauda (born 22 February 1949) is an Austrian former Formula One driver and a three-time F1 World Drivers' Champion, winning in 1975, 1977 and 1984.
Relevant evidence: Yes