The Spanish GP has yielded some unforgettable moments since Formula 1’s first visit to the Circuit de Barcelona-Catalunya in 1991, so here are five of its most iconic races. F1 wanted a new home for the Spanish Grand Prix following the 1990 season after five years at Jerez as the track often struggled to draw large attendances. The series has visited Spain since 1951 and decided to return to Barcelona as the city got set to host the 1992 Olympics. The Montjuic mountain in Barcelona had staged four Spanish Grand Prix from 1969 through 1975 in rotation with a race at Jarama. Pedralbes even stage…