The Chevrolet Cobalt SS Turbo and HHR Panel SS Concept benefit from the same 2.0-liter Ecotec four stuffed in the Pontiac Solstice GXP and the Saturn Sky Redline.

Well, Chevy has swapped out a 215-hp supercharged four-cylinder for a 260-hp turbocharged four-cylinder that the company says now lives up to the SS badging.

To get those big power numbers, the new 2008 Cobalt SS, which debuted at SEMA last November, substitutes a turbocharger for the original model's supercharger.