Zero to Hero in the 2015 Chevrolet Impala CNG SuperCruise

impala 2015The Chevrolet Impala is a critical test-bed for two future GM technologies in 2015: a bi-fuel CNG option and the forthcoming SuperCruise automated highway driving system.

We caught up with a 2015 Impala LTZ featuring the shield grille that comes on LTZ cars with the Safety tech option package – and this is still the best-looking full-size sedan from Chevy in decades.

The current setup does not yet incorporate lane-keeping and automatic steering, but that is certainly in the pipeline. The Cadillac CT6 is tipped to debut a true SuperCruise functionality next year — with on-ramp to off-ramp highway driving handled exclusively by the car itself.

The CNG bi-fuel option is also available as of this month to retail and fleet customers. Running on gasoline or compressed natural gas, this ingenious tech is switchable back and forth between the tanks as needed. CNG is about half as expensive as gasoline, and produces only half the emissions — so it is a win-win aside from a trunk space cut and a price jump versus standard Impalas.

As a CNG and gas V6, the Impala bases at $38,000. For many fleet customers, however, this will pay for itself much faster than the base 2.4-liter with mild hybrid eAssist.

The trims and three engine options are detailed below.



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The 2015 Impala looks amazing in the flesh and on the streets. One might even say it is… “really, really, really ridiculously good-looking.”

Even its base trims are very cool and dark up front, with a really solid appearance that is unique and very attractive.

Yes, on a Chevy Impala!

2014 Chevrolet Impala GIF


The 2014 Impala comes in three engine options, from the eAssist 2.4-liter up to the 3.6-liter V6 that should be a must for anyone reading this.


The headlights are even quite interesting, which is special at this price point. HID bi-xenons are optional, with LEDs ringing the main beams and white LEDs down below.

2014 Chevrolet Impala LTZ

The Impala’s lighting is far classier than any Ford Taurus SHO, and makes the Impala look – at first glance, at least – like a viable Audi A6 competitor.

ChevroletImpalaHeadlamps04.jpgImpala’s with the Driver Assistance Package include a special grille style.

2014 Chevrolet Impala

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Inside, things keep getting even better. Remember complaints last year about Malibu’s back seat being smaller than before? Where did the room go?

Passat versus Impala - Profiles

It went to the Impala!  This car is not only extremely wide and long, but inside: every dimension tops the Audi A8 LWB by at least a few inches. Seriously, the Impala is TGrande.

Refinement and rigidity feel nothing like the shakey old Impala, while things are very hushed inside even over bumps.

The all new 2014 Chevrolet Impala set to make a statement at New York Auto Show when it is unveiled on April 4th.

The last piece on this birthday cupcake of a redesign? A trunk of 19 cubic-feet.

That is huuuuge.

2014 Chevrolet Impala

Congrats, Impala — keep up the good work!

A special nod of deep respect for the chief architect of this new Chevy: General Motors Chairman and CEO Dan Akerson.


General Motors is better prepared for the future now – via Akerson – than after any other departing GM CEO in memory. A harder job than his over these (often hellish) five years is impossible to imagine.

Congratulations to Akerson and the Chevy Impala are well-earned, to be sure.






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Models Comparison (– NA, Round White Circle-Optional, Yellow Circles-Standard)

Highlights LS ECO 2LT 2LTZ
ECOTEC® 2.5L 4-cylinder DI engine with Variable Valve Timing and intake Variable Valve Lift
Engine, ECOTEC 2.4L DOHC 4-cylinder DI with eAssist technology and Variable Valve Timing (VVT)
3.6L DOHC V6 DI engine with Variable Valve Timing (VVT)
Front wheel drive
Remote vehicle starter system
Air bags, 10 total, frontal and knee for driver and front passenger, side-impact seat-mounted and roof rail for front and rear outboard seating positions
Lane Departure Warning
Forward Collision Alert
Side Blind Zone Alert
Rear Cross-Traffic Alert
Rear Vision Camera
Air conditioning, dual-zone automatic climate control
Power sunroof
Seats, front bucket
AM/FM stereo with CD player and auxiliary input jack
Chevrolet MyLink®1 Radio, AM/FM stereo with CD player
Chevrolet MyLink® Radio with Navigation, AM/FM stereo and CD player
8″ diagonal color infotainment display
SiriusXM and HD Radio™ audio system
Bluetooth® for phone, personal cell phone connectivity to vehicle audio system
OnStar, 6 months of Directions and Connections plan
  Starting from $29,945* Starting from $30,895* Starting from $35,215*


2014 Chevrolet Impala Launch


Official 2014 Impala Specifications from Chevy.


Model: 2014 Chevrolet Impala
Body style / driveline: front-drive, front-engine, four-door, five- passenger sedan
Construction: integral
EPA vehicle class: full-size
Manufacturing location: Detroit-Hamtramck, Mich.; Oshawa, Ontario
Key competitors: Chrysler 300, Ford Taurus, Nissan Maxima, Toyota Avalon, Hyundai Azera


Type: Ecotec 2.4L DOHC I-4 w/ eAssist Ecotec 2.5L DOHC I-4 3.6L V-6 VVT DI
Displacement (cu in / cc): 145.4 / 2384 150 / 2457 217 / 3564
Bore & stroke (in / mm): 3.46 x 3.85 / 88 x 98 3.46 x 3.97 / 88 x 101 3.7 x 3.37 / 94 x 85.6
Block material: lost foam cast aluminum cast aluminum aluminum
Cylinder head material: lost foam cast aluminum c ast aluminum cast aluminum
Valvetrain: DOHC with four-valves per cylinder, continuously variable valve timing DOHC with four valves per cylinder, continuously variable valve timing DOHC with four valves per cylinder; continuously variable valve timing
Ignition system: individual coil-on-plug individual coil-on-plug individual coil-on-plug
Fuel delivery: high-pressure direct injection and electronic throttle control high-pressure direct injection and electronic throtle control direct high-pressure injection and electronic throttle control
Compression ratio: 11.2:1 11.25:1 11.5:1
(hp / kW @ rpm):
182 / 134 @ 6200 (est.) 196 / 145 @ 6300 (est.) 305 / 227 @ 6800 (est.)
(lb.-ft. / Nm @ rpm):
172 / 233 @ 4900 (est.) 186 / 253 @ 4400 (est.) 264 / 358 @ 5300 (est.)
Recommended fuel: regular unleaded regular unleaded regular unleaded
Emissions controls: close-coupled, catalytic converter; variable valve timing; positive crankcase ventilation evaporative system close-coupled, catalytic converter; variable valve timing; positive crankcase ventilation evaporative system dual close-coupled catalysts and single underfloor catalyst; variable valve timing, evaporative system
Estimated fuel economy (city / hwy): 25 / 35 21 / 31 19 / 29

2014 Chevrolet Impala Launch


Type: Hydra-Matic 6T40 six-speed automatic Hydra-Matic 6T70 six-speed automatic
Application: 2.4L / 2.5L 3.6L
Gear ratios: (:1):    
First: 4.58 4.48
Second: 2.96 2.87
Third: 1.91 1.84
Fourth 1.45 1.41
Fifth: 1.00 1.00
Sixth: 0.75 0.74
Reverse: 2.94 2.88
Final drive ratio: 2.64 – 2.4L
3.23 – 2.5L

2014 Chevrolet Impala Launch

Electric Drive System (for eAssist)

Type: belt-driven, liquid-cooled motor/generator unit and lithium-ion battery system; air-cooled power electronics and battery pack
Maximum electric generating power: 15 kW @ 1570-3180 rpm
Maximum electric motor torque (cranking): 110 lb.-ft. / 150 Nm
Maximum electric motor torque (electric assist): 79 lb.-ft. / 107 Nm @ 1,000 rpm
Maximum electric motor power (electric assist): 15 hp / 11.2 kW @ 1,000-2,200 rpm
Lithium-ion battery: 115V, 0.5-kWh, 15 kW peak power



Suspension (front): MacPherson strut; twin-tube dampers with gas-charged valving; 28.5mm hollow direct-acting stabilizer bar; hydraulic ride bushing
Suspension (rear): multilink with coil springs and stabilizer bar; gas-charged twin-tube dampers
Steering type: electric variable-assist rack-and-pinion(belt-driven with V-6 models, dual pinion with 4-cyl. models) with Pull Drift Compensation
Steering ratio: 15.2:1
Steering wheel turns, lock-to-lock: 2.73
Turning circle (ft / m): 38.8 / 11.75



Type: split, dual-circuit four-wheel-disc with power assist
Rotor diameter x thickness
(in / mm):
front: 12.6 x 1.2 / 321 x 30 (vented) – all models
rear: 12.4 x 0.9 / 315 x 23 (solid) – all models

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Wheelbase (in / mm): 111.7 / 2837
Overall length (in / mm): 201.3 / 5113
Overall width (in / mm): 73 / 1854
Overall height (in / mm): 58.9 / 1496
Track (in / mm): front: 62.2 / 1580
rear: 62 / 1576
Curb weight (lb / kg): 3800 / 1723 (est. – LT model w/ V-6)


Seating capacity: 5 (2 front / 3 rear)
Headroom (in / mm): front: 39.9 / 1013
rear: 37.4 / 950
Legroom (in / mm): front: 45.8 / 1163
rear: 39.8 / 1011
Shoulder room (in / mm): front: 57.9 / 1470
rear: 56.9 / 1445
Hip room (in / mm): front: 54.9 / 1394
rear: 54.1 / 1374



EPA interior volume (cu ft / L): 123.8 / 3505
Passenger volume (cu ft / L): 105 / 2973

Cargo volume (cu ft / L):

18.8 / 532

Trailer towing maximum (lb / kg): 1000 / 454 (3.6L and 2.5L)
Fuel capacity (gal / L): 18.5 / 70 (2.5L and 3.6L)
15.8 / 59.9 (2.4L)

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