Well got my poser 7 today and thought il load the car and do a nice huge render, hahahaha, I dont think so.

Ok thats start with my PC specs which I dont think is at all bad.

Dfi LP NF4 Ultra D.
AMD FX 57 (water cooled)
2 Gig kit OCZ Gold memory.
2 x 250gb WD Sata 2 HDs
Nvidia 7950 GX2 Dual core-1GB memory.

I loaded the car, it took 1min 39sec.  Loaded HDRi from poser and sellected the red colour for the car.  I put the firefly render settings to a preset  full and sellected a very very small area to render from a 600 x 600 screen. So far 20min later its rendered 10%?

Il keep this updated.