http://avt.inel.gov/library.shtml Monthly updates are available here. Pretty impressive numbers when you consider the Hemi engine usually gets about 14mpg and these results are with heavy use by municipalities. The average driver would do much better because you would be able to drive in CD mode much more often. I can't wait for the minivan, we should see about upper 40's to lower 50's mpg for a 7 passenger vehicle. They're results again will probably be less because they are being used commercially. I believe we will see both of these vehicles go into production in a year or two.