PD Official Press Release "Backfire in GT4 issues".
"BACKFIRE IN GT4 ISSUES"
As the hype for GT4 is growing, Polyphony Digital has seen a lot of concerns of hard-core GT gamers regarding the backfire issues. Due to interest shown on that particular matter, we feel responsibility to answer on that issue as clearly as possible.
Backfire won't be in GT4. The reason is strictly bussines-marketing related. If we would put backfire in GT4, then we would have nothing to put in GT5 to make people say "Hey, there is a backfire in GT5!".
As we are very determinant to have people say "Hey, there is a backfire in GT5!", we decided to leave it out from GT4 - no matter of fact that there is no problem to put backfire inside, due to architecture of the PS2 console itself and it's VMO chip which allowes independent calculating of real-time effects, such as fire - and leave it for some better times.
We have a strong hope that users won't find this move insulting in any way because we know they will be more then happy in time the GT5 arrives to say: "Hey, there is a backfire in GT5!"
Notice to the press: As for now, GT5 for PS3 system will come out branded as "Gran Turismo 5: The Real Backfire Simulator".