I would try "Let me tell you what the driving experience is like when extra power is called for"

Can you pass cars safely ?
Merging onto expressways any problem ?
Any limitation in getting up to speed from a stop ?
How does the car drive on the expressway ?

For the gearheads, talk torque -- aka acceleration.

I was reading the articles of Neil something -- the journalist from the LA times who caused a bit of angst over in GM land recently .. and was reminded that a LOT of drivers identify with their cars on many levels. I hate to say it, but you may want to give some thought to how the car makes you *feel* owning and driving it.

The owning part has been much written about: proud to be less of a blight on the environment, doing your part to reduce US dependence on foreign oil.

The driving part remains obscure to most. Car enthusianst mags pretty much write an article derived from how sure the car whips around a corner. There are many other facets. Do you *enjoy* driving the Prius ? Tell them why! I know I do; and I am not by any stretch of the imagination a car buff. I find the silent, effortless glide of the car extremely relaxing. It is like sitting in my sunroom on a nice day, with my favorite cat purring nearby. It has the attraction of sailing, without having to acquire sealegs :-) It is less a drive, and much more a ride. Time after time.

To an interested but inexperienced reader, I might say: if your first thought riding the monorail at Disney World was "hey, this is cool!", you are going to LOVE the Prius !!