I saw it as the crash being real, but Harry being killed. His driver to find her is just a figment of her imagination. The father she never had. That is why how you play effects the ending. If you are good the memories are of you being a good father and thus the journey in the game is representative of the real Harry and his love of his daughter. If you get the bad ending it serves to remind you that he wasn't really the kind of person who would look for his daughter in a town like Silent Hill. The sexual innuendo suggests some possible incestuous feeling on her part as well.
I've heard people on other boards say that Harry is somehow in an alternate dimension that the experience for him is his dying thoughts interposed with her imagination of him.
Tha UFO ending the best though. Hilarious.
XBL: WiiVault Wii: PM me PSN: WiiVault
PC: AMD Athlon II Quadcore 635 (OC to 4.0ghz) , ATI Radeon 5770 1GB (x2)
MacBook Pro C2D 2.8ghz, 9600m GT 512 iMac: C2D 2.0, X2600XT 256
