The McLaren Mercedes MP4-22 had its track debut at the Valencia circuit in Spain on Wednesday.
There were some glitches, however. World Champion Fernando Alonso was forced to return to the pit at one point when smoke began to come out from the back of the car, according to Autosport.
Alonso completed 57 laps with his fastest time on the track (after the smoking pit stop) at 1 minute, 12.053 seconds.
The test follows the announcement that Vodafone is releasing three Formula One cell phones to celebrate its sponsorship of the McLaren Mercedes team.