The US Marine Corps and US Special Operations Command are now testing the "Shadow Reconnaissance Surveillance Targeting Vehicle" (Shadow RST-V for short). What makes this notable is that the Shadow RST-V is a diesel hybrid-electric, able to run in electric-only mode, hence making it a "full hybrid." It gets nearly three times the miles-per-gallon of the military version of the Hummer, and about twice the commercial Hummer mileage: 758 kilometers on 95 liters, or roughly 18 miles per gallon, vs. 8-10 mpg for the H2.
That the American military is testing a new stealthy recon vehicle is not particularly worldchanging. But think about American car culture: the military styling and legacy of the Hummer line is a key motivation for the many purchasers who want that alpha-monkey feeling. The same motivation would apply to the Shadow. A civilian version of the Shadow, stripped of armor and hardpoints and the sundry trappings that the military needs and civilians can't have, would be lighter and get better mileage, probably up into the low 20s. That's not revolutionary, but it is significant. Even more significant would be the "hybrid reframing," directly attacking the myth that hybrid cars are wimpy vehicles for greens & yuppies; that, more than anything, could be the key to making hybrid vehicle technology dominant.