As I said, I will be using a 2008 Cobalt XFE.

With some conservative hypermiling, I can get about 43-44 mpg on my commute (about 46 miles one way). My max MPG for this trip is 48.9 (according to the car’s calculation). My normal commute has an inbound time around 5 AM (to avoid most traffic).

As stated earlier I try to be a very courteous driver by following some basic tenants:

1) Treat others the way you would like to be treated.
2) Courteous driving encourages other drivers to be courteous.
3) Aggressive driving influences others to drive aggressively.

I have a few planned experiments, but will only comment on each one when it is underway and seems to have a reasonable chance of being a valid experiment.