Not immediately, I'll spend some time just getting used to the new driving techniques required for one of these before I do any mods.
Yesterday on the way to work I put it in "mountain" mode, which force-charges the big battery. When I left the house I had no battery reserve, and by the time I got to work it told me I had enough juice to drive 11 miles in EV mode. I turned that 11 miles into nineteen miles of EV mode and almost made it home on the battery
I did the same thing this morning, I'm gonna try to go all the way home in EV mode tonite. I haven't set up my charger at house yet, but I'll probably to it tonight, so tomorrow should be in EV mode
The shortest route from my house to work is right at 20 miles, so I'm pretty sure I can make 40 miles of EV a day (manual rates it at 33 miles), and I'll be able to do my daily commutes back and forth without ever using the gas if I plug in every night.