The ologic look is essentially a large-diameter tire with a narrow width -- but with a tall sidewall. The resulting tire covers more distance in a single revolution but has less contact with the pavement by being narrower -- a concept intended to enable BMW's i3 and i8 electric cars to roll farther on a single battery charge.
It is something of a reversal of the trend in tire appearances of the past decade. Since the late 1990s, consumers have reached for wider tires that promised better cornering and takeoff traction. Tires of the past decade also have tended toward "low profile" -- meaning shorter sidewalls.
At the same time, Goodyear is developing a technology that tackles fuel savings from a different direction. Goodyear is working on "air maintenance" tire systems for future applications, says Steve Rohweder, Good-year Tire & Rubber Co. technology director for North America. The system would continuously monitor tire pressure and keep it at the correct inflation level using an automatic internal pumping device.