Hybrid SUV's

I read an interesting article on CNN yesterday about hybrid SUV's, especially the New Chevy Youkon XL hybrid which is scheduled to be released later this year. People see the EPA fuel numbers and scoff because they are not nearly impressive as a hybrid Toyota Prius or hybrid Honda Civic. But what the article cleverly points out is that for families who actually use an SUV to haul kids and kids' friends around, and all of their stuff, and may possibly need a vehicle that handles well in the snow.....just trading in their 7 passenger SUV for a Prius or a Civic just ain't gonna happen. The article points out that a hybrid SUV that gets 20 MPG will save about 237 gallons of gas per year over the same traditional fuel based model which nets about 17 MPG. When you compare that to a hybrid Nissan Altima that gets 34 MPG compared to the 26 MPG a traditional Altima will save 136 gallons of gas per year, even though the difference is 8 MPG. If an owner of a traditional large SUV went to a Prius Hybrid the fuel savings would be 611 gallons of gas per year. Big SUV's guzzle gas, but often times families are dependent and can't easily make that switch. Anyway, that is the summary of the article...read it here. What do you think?