Ferrari's technical director James Allison believes the team has a strong base for the upcoming Formula One season after Kimi Raikkonen showed excellent pace over the first two days of testing in Jerez.
The 2007 World Champion was the quickest on the first day, before finishing behind McLaren's Jenson Button on the time sheets on Wednesday.
Allison is also pleased that the F14 T has been able to finish as many as 78 laps at the Andalucian circuit so far this week.
"I am reasonably happy with what we have seen so far," said Allison told Autosport.
"I don't think there are any killers we have uncovered.
"The fault list is not a short one, it never is with a new car, but we are able to keep going out of the garage and doing the laps.
"Our relative lack of laps compared with the V8 era is not about the fundamental reliability of the package, it is about us making sure we don't make mistakes."
The former Lotus man added that the complicated rules changes were the reason for the lack of running during the first two days in Jerez.
"The point of these first two days is to get running, get the car programmed with the gazillion of numbers that you need to make it do its thing, and to make sure that the really basic building blocks of the car are correct," he added.
"That includes stuff that is straightforward but completely fundamental to this car like doing all the things for cooling properly.
"There are a lot of different fluids in the car and they all have to be cooled, and that is really extremely important to allow us a foundation for the next two days of testing and the next two days before the season starts."