The 2010 5 Pontiac G6 brings a fresh appearance some nice engineering upgrades to this sporty lineup of midsize sedans, coupes and convertibles. A mid-year freshening gives these late-2010 models a sharper look up front, more like that of the top-level GXP. And the four-cylinder is now offered with an optional six-speed automatic transmission that delivers EPA-estimated fuel economy of 22 mpg in the city and 33 on the highway. Weve found these cars enjoyable to drive and quite pleasant. The G6 two-door coupe is sleek and sporty, the convertible features a dramatic folding hardtop, and the sedan is an attractive alternative to other midsize sedans. Most come with V6 engines, though the sedan is available with a four-cylinder engine. For 2010, XM Satellite Radio is now standard on all models. And several new option packages, which according to Pontiac were inspired by consumer demand, make it easier to upgrade and