Congratulations, War Wagon! What a great price for a vehicle, let alone an insight! I would recommend just getting the basic maintenance stuff squared away, but you already know that.
I think another poster mentioned to drive the car up some big hills while flooring the throttle. You'll be able to see how fast the pack can drain out. I am by no means an expert in hybrids though, so I'm sure you'll have some more guys posting soon.
I must admit, I'm a bit jealous considering I paid almost twice that for my Civic. Congratulations again.
JMac