Fisker Gives Karma 67.2 MPG Estimated Fuel Economy Rating, Beats All… 1Ben Wojdyla and 42 others eEditaDeleteBPromoteXDismissXUndismissbBlock for sitebHide 67.2MPG. That's the fuel economy figure Fisker calculated for the Fisker Karma using SAE standard estimations. If true, it puts the plug-in, mustachioed hybrid ahead of the current champ, the 2010 Toyota Prius at 50MPG. We'll see. Press release below. » 9/09/09 4:00pm 9/09/09 4:00pmDetroit Auto Show: Fisker Karma Luxury Hybrid, Only $80,0002010 Toyota Prius: Bigger Size Meets Bigger Fuel Economy - 50 MPG!