Gran Turismo creator Kazanori Yamauchi? Total liar. K, maybe not, but...at least a total fibber. Speaking about Gran Turismo's continued lack of damage-modelling, he says:

We've had a lot of discussions with the manufacturers and although at the beginning they hated the idea of deformation, now they're slowly coming around to it. We've still got a few to convince, but we will. Expect deformation in the very near future: very, very soon.

Rubbish. If I can smash an exquisitely-modelled Ferrari into a wall Project Gotham Racing (and have it both look and, most importantly, feel like I've smashed it), I can do it in Gran Turismo, and should have been able to do so for years, not "soon". Quit being such a ninny over scratching your lovely, shiny car models and bring that extra dash of realism to the series, will you? This excuse is as wafer-thin as the arse-end of my favourite jeans.
Yamauchi: Expect GT deformation "very, very soon" [VG247]