I have an '04 Prius, and the odd rattles that pop up not infrequently is the only thing that reminds me I do not drive a luxury car. I would not be surprised if the '06 Prius has these annoyances fixed, but I am not sure.

So, what makes the HiHy more of a luxury car than the Prius ?

R2-E2, 2G Prius.
Highway/City/Husband/Wife MPG: 56.5, as of 12/2005, 26K miles

Jac Nasser, Ford President: "We are planning to launch a hybrid version of
this car [P2000] within this year [1998]. We will also make FCEV available in
2004."