Just as Jarno Trulli was on the way to victory, Firman crashed at the hairpin corner, blocked the track and caused a red flag.

The race officials counted the results to the previous lap when Firman was ahead of Trulli, thus giving him the win.

He was injured in a huge crash during practice for the 2003 Hungarian Grand Prix which forced him to sit out that and the next race, in which he was replaced by Zsolt Baumgartner.

[3] Firman has also competed in the 24 Hours of Le Mans, and was an official test driver for the A1 Grand Prix series in August 2004.

In 2007, Firman, along with Daisuke Ito, won the Japan Super GT GT500 class championship with the Aguri Suzuki co-owned ARTA team.