There's a lot we don't know about the hybrid Porsche 918 Spyder concept. Is its 500 HP combined or gas-only? Does performance really tail-off as charge runs down? So what do we know? Porsche might actually build this. »3/02/10 8:20am 3/02/10 8:20am
Kinja is in read-only mode. We are working to restore service.