2008 Saturn Vue Green Line Preview - 2007 Chicago Auto Show: When it first debuted, the Saturn Vue Green Line was a "Lite" hybrid...less pricey than regular hybrids, slightly more fuel efficient than other Vues, and with all that great hybrid taste. That status changes next year, when the Vue Green Line will be powered by GM's sophisticated new two-mode hybrid propulsion system, promising a 45 percent improvement in fuel economy over the non-hybrid Vue. But until then we're left with the 2008 Saturn Vue Green Line and it's pretty good gas mileage - for a pretty good price.