“It was a good day, we managed to complete our programme without any issues, so we could do a lot of laps and that was quite useful," Alonso said.
The team arrive at Austin after a disastrous weekend in Japan where they never got their car hooked up.
However the Spaniard reflected on an interesting first two practice sessions and thinks that he has a fighting chance of a good result this weekend.
"In FP2 we tried both types of tyres and here we really have to be on our toes because it looks like the supersoft suffer a lot from degradation, but it was a very useful day, so now we have a lot of information to go through and then make the right choices for the rest of the weekend.
"We didn’t run the supersofts in the morning because we don’t have a lot of sets from that compound, just the soft and the medium, but in the afternoon we had to run them and it was not a surprise their degradation was high. But you still have to confirm it by running, so that’s what we did.
"We tried a lot of different things in the car – aero, suspension, etc. – and some worked better in FP1 while others were better in FP2.
"Now we have to get the package right and grab a couple of tenths that are within our reach. Hopefully that will be enough to put us in contention for a place in Q3."
Bahrain International Circuit - Winter testing