Valentino Rossi was pleased after completing a three-day test with the Ferrari team at the Valencia circuit and said he will hold more testing sessions with the Italians in the next few months.
The MotoGP champion had a poor start on Tuesday, when he failed to complete a single lap before he spun into the gravel trap.
But things got better for the Italian rider, who shone in yesterday's session and finished less than 1.5 seconds off the pace today.
The test was the first time Rossi took to the track alongside other Formula One drivers, and he admitted he felt at ease despite several spins during the three days.
"It's been a very interesting test, considering that, for the first time, I found myself running in an F1 car together with other drivers," Rossi said.
"I must say I've felt at ease and I haven't had any problems in particular; maybe I'll have to get some experience of driving in the wet.
"As usual, the welcome at Ferrari has been fantastic: it's a very united group and I've felt almost within a family with Michael, Felipe, the technicians and the mechanics."
Despite having tested alongside other drivers, Rossi said he didn't have anything to prove.
"I didn't come here to demonstrate anything to anyone but only to deepen my knowledge of an F1 car, and I thank Ferrari for keeping offering me this opportunity," he added.
"In the next months there'll be other tests but now I go back to motorbikes, which are at the top of my thoughts. I, like Ferrari, have an obligation to face: we both have a world championship to play for and, possibly, to win!"
Rossi, whose MotoGP rivals were testing at Phillip Island while he worked with Ferrari, will get back to his usual ride next week for a test in Qatar.