In 2002 he moved to the Manor team in British Formula 3, leaving them in 2003 for the Carlin team in the same series.
Antinucci moved to the Formula Three Euroseries for 2005, and although finishing 19th overall in his first season, in 2006 he took several race wins on his way to 5th in the championship, and 2nd place at the end of season Macau Grand Prix, starting from 15th on the grid.