"Really it’s been more a case of making sure we’ve got a car which we can run reliably, which cools correctly, which accounts for the vibration levels we expect, whose control systems integrate well with the software that Ferrari run. We’ve taken a little bit of a step back to make sure that we’ve got a solid car to start the season with. We just want to get the car running, and understand the tires. We’ll have a big step later in the season.”
Source: SpeedTV.com