I had a quick peek at the top guns. Looks like about 2/3rds are using the display for their FE submissions based on what their profile says. I know my rating would probably move up the list quite a bit too if I had been using display figures which I think everyone realizes is usually more generous than the manual calc method.

Other than the top entry which does seem weird (no, it's not imperial gallons as the tank capacity is around 14g imperial), I suspect many of the top honors go to those that have longer runs with less stops and can exploit Emode often. For instance, Nash description seems to make perfect sense to me nursing Emode thru slow moving hiway traffic. I know I can't match that no matter what I do for my commute is shorter with some hills and stops mixed in .

Two climate control systems, one inside and the other at the tailpipe.

2007 Camry Hybrid (in service June 2006)
FE: 6.67L/100km or 35.3 mpg (6.11L/100km or 38.5 mpg in summer)