The weather has been very stable the last few days so I decided to test the influence of front toe on energy consumption. To my surprise there is a very real and rather large effect when changing toe. Car: P85+ on the factory Michelin PS2 tires (21"). Drive cycle: 7 mile commute, typical suburban drive. Speeds of 40-50mph. Ambient temps 65-80 dgrs (morning/afternoon. Temps stable day-to-day). Started the test by driving several days with front toe set at 0.07 dgr IN. Energy consumption: 310-320 wh/mile. Changed front toe to 0.30 dgr IN (max toe-in according to spec). Energy consumption: 340-350 wh/mile. Changed back to 0.07 IN and consumption is now back to 310-320 wh/mile. That's a solid 10% difference in range. Next I will re-check rear toe and see if there's some additional efficiency to be found. The engineer in me is finding this to be a great deal of fun.