According to Kotaku, Xbox 360 racer Project Gotham Racing 4 will be receiving two new downloadable “challenge packs” this Valentine’s day (February 14, 2008). The free challenge pack will allow players to drive the “hydrogen-powered 2007 Peugeot Flux” and includes two new game modes: Tourist mode (which allows you to “sightsee” with friends) and Free Roam Cat and Mouse (which pits a slow “mouse” car against several faster “cat” cars in a chase around the city).

Game developer Bizarre Creations announced today (August 23, 2007) that its popular arcade racer, Project Gotham Racing 4, is set for a release date of October 2, 2007, in North America on the Xbox 360. While originally slated for a release in September 2007, Bizarre Creations apparently decided not to compete with the slew of highly anticipated titles due out for the Xbox 360 that month, most notably Halo 3 and Mass Effect.

This new installment in the popular arcade racing game takes the series in…