I recently purchased a 2008 Cobalt XFE coupe. The XFE options are standard on cars with the base engine with manual trannies, and include LRR tires and (allegedly) different engine tuning to produce 25-29-36 rated FE. I'm in the middle of making my way through a baseline tank to measure future FE performance, but so far, I'm averaging right around 40 mpg (at 30/70 city/hwy), according to the car's built-in FE gauge (it also has instant mpg and tire pressure readouts...pretty handy, though I still plan to install a Scangauge). Very pleased with it so far, and looking forward to better results as the engine breaks in.
EDIT - I wouldn't call myself much of a hypermiler, but I do keep the tires overinflated (40 psi) and keep the speed down with coasting (engine on) when feasible.
Is that a typo? If not, that car sounds like I designed it, with torque and tall gears...how many RPM at 70mph?
Just to be clear, I'm talking about 30% city driving, 70% highway. I'm not sure about the RPM at 70mph, because I don't generally cruise at that speed. It sits at about 2100 RPM or so at 60 mph. I'll be able to get some more useful stats after I get the Scangauge.