Click above for high-res image gallery of next-gen Porsche Boxster spy shots

Porsche just unveiled improved versions of its Boxster and Cayman at the 2008 LA Auto Show last November, but they're already hard at work on the next all-new Boxster that's still a few years out. Destined for a debut at the 2011 Geneva Motor Show, the next Boxster will reportedly feature all-new sheetmetal with sources saying not a single body panel will remain untouched. The spy shots in our gallery below show an early development mule already wearing cladding to hide some of the new design elements. Porsche is also delving beneath the skin to improve the car's mechanicals, and weight saving measures are reportedly at the top of list. If Porsche can decrease the Boxster's curb weight enough, it will likely use a smaller turbocharged four-cylinder (probably with direct injection) to power the car. Though still likely to offer more than 200 hp, a smaller powerplant would enable Porsche to meet more stringent emissions and fuel economy regulations while maintaining the mid-engine sports car's performance and world renowned handling.

Related GalleryNext-gen Porsche Boxster - spy shots

[Source: KGP Photography]