Insuring your hybrid
Insuring a hybrid vehicle is no different than insuring a conventional car. There are no special steps or considerations and it doesn't cost extra. The premiums you pay will reflect the class of car, your driving record, how much you use your car, where you live, and how much coverage you want.
Today’s hybrid cars combine an electric motor with an internal gasoline combustion engine to produce a vehicle that gets awesome mileage.
But the misconceptions about hybrids are preventing some buyers from even considering a test drive. Here are five of the most common myths about these vehicles:

Myth #1: There isn’t much to choose from

Myth #2: You’ll save a bundle

Myth #3: They’re expensive to maintain

Myth #4: Hybrids are good for fair-weather driving only

Myth #5: Hybrids aren’t as safe as conventional cars

Full Article Here

*NOTE

This article seems to be a few years old. I'll peg it at early 2005 since it says the Prius is midsize and the RX400h isn't out yet.