With the GXP’s 260-horsepower, turbocharged 2.0-liter engine at its heart, this is the newest Solstice, a stunning coupe that promises as much as the convertible did - and just may deliver on more than looks alone. The differences are obvious: this Solstice has a hardtop removable roof and design changes to the rearward part of the vehicle, including a rear duck-tail spoiler, glass back hatch and expanded cargo area. The powertrain and interior are mostly left alone in this update. It’s scheduled to go on sale in 2009. Pricing has not yet been announced.