Is this GC8 Impreza type R, RA or 22B? Prodrive P1 based on Impreza WRX-RA STI version III, strongest GC8 is WRX 22B version IV Prodrive P25 with EJ22 stroked up boxer. 22B is limited to 400 units, 6-speed sequential gearbox is optional. Also GF8 Impreza Sportwagon type RA available for its estate model, same turbo EJ20 & 5-speed manual. Check out impreza GF8 when it's ready on stock