So far, I've been averaging just over 50% EV miles since I started using VoltStats a couple days after getting the car. All of my daily driving is electric. I've raised the lifetime average on the center screen from 40.9MPG to 41.6MPG, not bad when you consider how little I've driven it compared to the total miles.
Did my first mod, blocked the lower grill with cardboard (will upgrade to coroplast soon). I'm trying out Velcro wire ties instead of zip ties because it seems silly to try to reduce fuel consumption while throwing away plastic zip ties every time something needs to be removed. They're holding up so far, we'll see how they handle winter. Engine gets a little warm at highway speeds with outside temps in the 70s. That shouldn't be an issue again until spring.
I've done some rough measurements for belly panels. I'm hoping the weather gives me a nice day to work on them before winter sets in. I should be able to get it pretty smooth under there. It would be awesome if I could eliminate the need for that giant air dam, it scrapes so much.