Specifically engineered to house a new gasoline-electric hybrid powertrain, the platform underpinning the Niro consists of 53-percent high-strength steel, including reinforcements in the A- and B-pillars and roof rails. Even with its relatively wide and low proportions, large wheel arches, rocker cladding, roof rails, and rear skid plate, the Niro still manages to earn a slippery 0.29 coefficient of drag, says Kia. The firm is targeting a combined EPA fuel-efficiency rating of 50 mpg.
Strength and slipperiness are admirable qualities, but saving weight also is key to the Niro’s mission. To shave pounds, engineers utilized high-strength steel for the seat frames, fitted an aluminum hood and tailgate, and used aluminum for several suspension elements (including the front lower control arms and front and rear knuckles) and the brake calipers. No component went unexamined, Kia says, including the brake pedal, which is made from fiber-reinforced plastic. Finally, the typical 12-volt battery has been ditched, its responsibilities now resting on the shoulders of the high-voltage lithium-ion polymer battery.
A 106.3-inch wheelbase lends the Niro crossover proportions, and an elevated seating position provides for good outward vision. The lithium-ion battery pack is stashed underneath the rear seat. The use of acoustic glass for the windshield and contoured side mirrors defend against wind noise, and extra sound-deadening material in the front structure and expanding foam in the A- and B-pillars help quiet road and tire noise.
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