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Chevrolet MY 2014 Impala full-size sedan to offer 2.4L eAssist powertrain, estimated 35 mpg highway
4 April 2012
|New Chevrolet Impala. Click to enlarge.|
Chevrolet is unveiling its all-new 2014 Impala at the New York Auto Show; the redesigned full-size flagship sedan goes on sale in early 2013 as the model’s 10th generation. Impala was the best-selling full-size sedan in the US 2011, with sales of more than 171,000 units.
The new Impala will offer a range of three direct-injected gasoline engines, including a 3.6L V-6, new 2.5L four-cylinder and a 2.4L four-cylinder with eAssist, GM’s light electrification system that is also featured in the Chevrolet Malibu (earlier post), as well as in the Buick line-up (earlier post, earlier post).
Impala’s three powertrains all feature fuel-saving direct injection and lightweight components:
Impala’s Ecotec 2.4L engine works with the eAssist system to provide electrical assist in certain conditions to help save fuel. It is estimated at 182 horsepower (134 kW) and is expected to achieve 35 mpg US (6.7 L/100 km) on the highway.
The Ecotec 2.5L is part of a new family of four-cylinder engines developed with increased efficiency and greater refinement. It is estimated at 195 horsepower (145 kW).
Output for the 3.6L V-6 is estimated at 303 horsepower (226 kW).
All of Impala’s engines are matched with six-speed automatic transmissions.
|MY 2014 Impala powertrains|
DOHC I-4 w/ eAssist
|3.6L V-6 VVT DI|
|Displacement (in3 / cc)||145.4 / 2384||150 / 2457||217 / 3564|
|Fuel delivery||direct injection|
|Est. Power (hp / kW @ rpm)||182 / 134 @ 6200||195 / 145||303 / 226 @ 6800|
|Est. Torque (lb-ft / N·m @ rpm)||172 / 233 @ 4900||187 / 253||264 / 358 @ 5300|
A MacPherson-strut front suspension and four-link rear suspension underpin the Impala, with an isolated front cradle and hydraulic ride bushing that help deliver a smoother, quieter ride. All models feature an electric variable-assist steering system that helps save fuel by drawing energy only when the steering wheel is turned.
Designed on a global platform, the 2014 Impala uses a stiffer architecture that enabled engineers to tune the ride and handling more precisely, for a greater feeling of control and comfort. A package of sound-absorbing, sound-suppressing and even active noise cancellation (on four-cylinder models) contributes to the 2014 Impala being Chevrolet’s quietest full-size sedan ever.
The 2014 Impala also offers a suite of standard and available safety features. It employs advanced technologies—including radar—to help avoid crashes. Visual and audible alerts help drivers identify potential crash situations and even intervene when a crash threat appears more imminent. The available safety features and benefits include firsts for Chevrolet and Impala:
Full-speed-range adaptive cruise control. Using radar technology, this feature senses traffic in front of the Impala to adjust the vehicle speed, including stopping the vehicle in heavy traffic and accelerating again. It is the first application in a Chevrolet.
Collision mitigation braking. Another Chevy first: Radar technology detects a possible crash threat and alerts the driver. If the driver does not appear to react quickly enough or doesn’t react at all, this feature intervenes and applies the brakes in an effort to avoid the crash.
Forward collision alert. Camera technology detects a possible crash threat and alerts the driver, giving him or her time to stop and/or change course.
Lane departure warning. A camera-based lane detection system that warns the driver of impending lane changes. The camera, mounted near the inside rearview mirror, identifies traffic lane markings and provides audible alerts.
Side blind zone alert. Using radar sensors on both sides of the vehicle, the system “looks” for other vehicles in the blind zone areas of the Impala and indicates their presence with LED-lit symbols in the outside mirrors.
Rear cross traffic alert. Based on the radar sensors of side blind zone alert, it warns the driver of vehicles in traffic when backing out of a parking spot— including angled parking. Visual and audible alerts are triggered if moving vehicles are detected.
These crash-avoidance technologies complement the Impala’s other safety features, including 10 standard air bags and OnStar.
The 2014 Impala will be offered in LS, LT and LTZ models, with assembly at GM’s Detroit-Hamtramck, Mich., and Oshawa, Ontario facilities. Pricing will be announced later.
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