http://en.espnf1.com/ferrari/motorsport ... 35207.html
"This year we did reduce the gap to Red Bull," Costa told La Repubblica. "What we have done is revolutionise our working methods and this meant a period of adjustment. And we paid for having a wind tunnel that was a bit dated. But now we have solved the problem and begun a new era."
Looks like they upgraded their wind tunnel during the season.
Same interview but different source:
http://www.repubblica.it/sport/formulau ... ref=search
Ferrari, which we expect for 2011?
"Extremely. From the standpoint of the regulations, I say. There will be areas on the border with what you can do." [autotranslated]