Kept my tinkering to a minimum today. Had snow to play in instead!
Installed an LED flasher. Probably the simplest car to do this on. Cheap $2 ebay LED flasher. Trim the plastic a bit and pop it in. Done. Now I'm free to swap in LEDs whenever I feel like it. I followed it up by testing my LEDs and labeling them by color.
I just did some math. Based on how much gasoline it takes my gas Firefly to get me to work (~0.7L), and assuming the engine is at it's most fuel efficient the whole time (250g/kw hr), I end up with ~2.1kWh to go the 15 kim to work.
Really? That's
it? 
I've done calculations based on aero drag and everything else, but I clued in that this would give me a "real world" idea. In theroy, it should be better than that, even, since the engine is rarely at it's peak efficiency, but still...that's seems like almost nothing.
A quick bit of googling puts other EVs at a similar power usage. So I guess it's perfectly feasible. (Anyone care to confirm?)
Cool.
Didn't believe the EV calculators that said I could expect 50km range. It should do that no problem. Heck, the half pack that's in there should get me to work and back. Just.
Real world driving will tell. Eventually.
