2011 Formula 3 Sudamericana season

The 2011 Formula 3 Sudamericana season was the 25th Formula 3 Sudamericana season. It began on 21 March 2011, in Velopark, and ended on 17 December at Autódromo Internacional Orlando Moura in Campo Grande.

In year most complicated of the category, Fabiano Machado dominated the Championship, winning 17 of the 25 races in a season where only he and one other driver, Ronaldo Freitas, competed in every race. Bruno Bonifacio dominated the Sudamericana Class B, winning 12 races.

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