The "big" new xB does not fit my 6'-2" self as well as my present xB:

My 2006 xB
Front Headroom: 46.1", Front Legroom: 45.3"
Rear Headroom: 45.7", Rear Legroom: 38"

The new 2008 xB
Front Headroom: 40.1", Front Legroom: 40.7"
Rear Headroom: 41.2", Rear Legroom: 38"
http://www.edmunds.com/new/2008/scion/xb/100868014/specs.html

We are discussing that subject here:
http://www.scionlife.com/forums/viewtopic.php?t=172814