However, I did feel, while driving it, that 'Fulmen' was not appropriate.
On the drive back, I decided - given that a) 'Deckard' feels very male, given the origin and all the associated harrisonfordness and b) the car hasn't really demonstrated a gender preference in its personality - that 'Zot' was the only name we've come up with so far that really fits in any reasonable way.
So, that is the name of my new Volt. 'Zot'.
Tomorrow I need to call and make sure the loan actually went through properly, so I can /keep/ the car...
And then I need to order an FSM fish, a spaceship fish, new license plate holders... and a 220VAC charger.