Yeah, they do need Toyota, Prologue or not! I was absolutely gutted to find out that I could not purchase or race the Sprinter Trueno GT Apex - the first time in any Gran Turismo game where you could buy cars. Thanks to PD they have also broke a personal ritual that has been with me since the original game almost 12 years ago...
The first car I always purchase is the Sprinter Trueno GT Apex. The colours may change, some times its the red and black one, other times its the white and black one, but always when I start its the Sprinter Trueno. Not having it present, feels like an old friend is missing! :'(