Sony Computer Entertainment America today announced that Gran Turismo 4 will be released in the US on February 22nd. The manufacturer suggested retail price for Gran Turismo 4 will be $49.99 (U.S.) / $69.99 (Canada). Developed by Polyphony Digital Inc., Gran Turismo 4 continues where Gran Turismo 3 A-Spec left off, offering more cars, more courses, more race modes and online gameplay via the Network Adaptor (for PS2). In offline gameplay, players will have the opportunity to race in an enhanced arcade and simulation mode based upon similar game mechanics from Gran Turismo 3 A-spec. Check the press release for more details.