The Forza 2 Championship Racing Series kicked off with Group 1 running at Tsukuba on July 10th, 2007. Entry requirements for the series were set to be a 2004 Audi S4 running at 650PI. More details can be found on the first page of the Ars Forza Tournament Thread.
CURRENT STANDINGS (Season 1 complete)
Below links jump to page of Forza Tourney Thread with relevant info.