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► NEW 2015 Kia K900 overview

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A flagship should be equipped with the proper running gear, and the all-new 2015 K900 lacks for nothing. The K900 introduces the first V8 engine offered in a Kia sedan. The Tau DOHC all-aluminum 32-valve five-liter engine produces 420 horsepower. The engine is designed for efficiency with Gasoline Direct Injection (GDI) and dual CVVT variable valve timing on both the intake and exhaust. A special tuned air intake improves airflow while a roller-type timing chain and Teflon coated crank oil seal reduce frictional losses. The fast-heating catalytic converter helps reduce emissions and is of a lightweight design. The V8 is mated to a new smooth-shifting eight-speed automatic transmission.  Shift mapping is variable depending on the driver-selectable settings of Eco, Normal and Sport, and each mode also adjusts the electric steering's sensitivity.

The 3.8-liter Lamba V6 produces 311 horsepower, making it the most powerful V6 in the Kia lineup. A three-step Variable Intake System (VIS) is designed to provide optimum low- and mid-range torque.  Similar to the V8, the Lamba V6 features GDI and CVVT technology to help improve efficiency. A variable-load oil pump maintains optimum pressure at both low and high speeds. Like its more powerful sibling, the V6 also is mated to the same eight-speed transmission with gear ratios tailored to best match the engine application.

An advanced five-link fully independent front and rear suspension soaks up road imperfections while also managing to communicate what's happening at each corner. Mounted on a sub-frame to isolate road shocks, the front suspension has coaxial coil-spring shock absorbers and a new friction bearing in the steering column to enhance straight-line stability and steering precision. At the rear, the suspension sub-frame also houses the differential, and the coil springs and shock absorbers are separate units, allowing for negative camber for improved cornering ability.

The rear-drive layout of the K900 encourages spirited driving, and the solid chassis, consisting of 75 percent high and ultra-high tensile strength steel, utilizes advanced manufacturing methods that result in a body shell with exceptional strength and torsional rigidity.
The K900 V8 includes as standard equipment staggered P245/45P-19 front and P275/40R-19 rear tires on 19-inch chrome alloy wheels while the V6 rides on 18-inch alloy wheels shod with P245/50R-18 tires. NVH is kept to a minimum with standard laminated front and side window glass and generous use of sound reducing materials.

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Category
자동차 - Car
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