Question:  The drivers' world championship of the 1990 World Rally Championship was won by Carlos Sainz ahead of Didier Auriol and a Finnish rally driver who won how many world rallies?
Sentence (from "Juha Kankkunen"): Sébastien Loeb has since collected more world titles, but no driver has so far been able to repeat Kankkunen's feat of becoming a world champion with three different manufacturers.
Relevant evidence: No