You know things are rough in the auto industry when even an electric car company is struggling to carry on, but that's exactly what seems to be happening with Pininfarina. After showcasing its rather cute B0 electric car at the Paris Motor Show last year, the company was slated to debut a prototype with a working engine at next week's show in Geneva. Instead, it'll be hosting up that same B0 shell as before, with an undisclosed inside source noting that lingering debt problem