Senna: Debut was a 'big moment'

The Brazilian, nephew of the late three-time champion Ayrton, is being evaluated alongside countryman Lucas di Grassi at Barcelona for a possible race-seat with the team in 2009.

"The first day of my first Formula One test has been just as big a moment as I expected it to be," said Senna, the 2008 GP2 Series runner-up, after setting the 15th time of the day. "I have also had a lot of fun and really enjoyed myself.

"This morning I focused on doing as much as I could to prepare for my turn. I listened to the team radio and watched and learned how the team works. I was feeling quite calm but on my first lap out of the garage I realised the significance of the moment.

"This is a very special opportunity and one which has been a dream my whole life."

Senna added that he did not feel under any pressure during his afternoon's running - di Grassi had driven the RA108 they shared during the morning session - and was happy with what he achieved on his first day in the car.

"The team were great and left it to me to find my level, but by the end of my second run I was feeling very much at home in the car," said the 25-year-old. "There were lots of new sensations as the gearshifts, engine power and aerodynamics compared to a GP2 car were all very different.

"I need a few adjustments to be fully comfortable in the car for Wednesday but generally I am feeling good. Obviously my full day is when everything will count but I am very pleased with what I achieved today and the more laps I do, the quicker I'll be hopefully.

"A great, great day for me and I am incredibly grateful to the Honda team for making it possible."