The teacher explains this Tahoe is the first "full sized hybrid SUV." Is it "brilliant?" "gigantic?" and "can it do jobs tinsy-winsy hybrids can't do?" the teacher asks. Yes to all those questions the kids reply and "that's why they made it" the teacher replies. The kids giggle. The fine print is interesting. The teacher says city mileage is 40 percent more than the non-hybrid Tahoe but the EPA has not released the numbers. So the fine print explains MPG 20 city is "based on GM testing." I think that's the first time I have seen that in an ad. Watch it after the break.