The 2009 Ferrari wasn’t that bad, Raikkonen managed to win the Belgian GP with it. Ferrari just started off poorly in 2009 but improved.
I’d say the 1980 Ferrari was rather poor. As reigning world champion Jody Scheckter managed to collect a mere 2 championship points. His teammate Villeneuve was able to grab 6 points. Ultimately reigning champion Ferrari only finished 10th in the constructors championship.
@andae23: you mean the 2003 McLaren they never raced with? The 18 I believe?