Firman competed in, and won, the inaugural
Formula Woman championship in 2004. Over the 7 races, Firman won twice and had 6 podium finishes. Following her success, Firman joined the new Production S1 class of European Endurance Racing Club's championship for 2005. The series, raced alongside
Britcar, saw Firman continue to race a
Mazda RX-8 supported by Mazda Motors UK and Guglielmi Motorsport. Her 2005 teammate was Mark Ticehurst. Firman and Ticehurst scored victory in class C of the series at the first round of the season at Silverstone. ==Personal life==