When powered by gasoline, the C-MAX Energi uses the all-new 2.0-liter Atkinson-cycle four-cylinder engine - powerful and fuel efficient and among the most advanced non-turbocharged four-cylinder powertrains Ford has ever offered.

ENGADGET: Ford's 2013 C-Max Energi rolls out 95 MPGe, arrives later this fall

Private, non-agricultural productivity growth has behaved oddly during this business cycle.

ECONOMIST: Too triumphalist by half