2018 Chevrolet Impala Sedan

City mpg:
Highway mpg:

Actual rating will vary with options, driving conditions, habits and vehicle condition.

2018 Chevrolet Impala Sedan Overview

The standard features of the Chevrolet Impala 1FL include 2.5L I-4 197hp engine, 6-speed automatic transmission with overdrive, 4-wheel anti-lock brakes (ABS), side seat mounted airbags, curtain 1st and 2nd row overhead airbags, rear side-impact airbag, driver and passenger knee airbag, airbag occupancy sensor, automatic air conditioning, 18" steel wheels, cruise control, ABS and driveline traction control, StabiliTrak electronic stability.

2018 Chevrolet
Impala Sedan

Starting at: $27,895

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  • Air conditioning
  • Automatic temperature control
  • Speed control
  • Power windows
  • 1-touch down
  • 1-touch up
  • Remote keyless entry
  • Illuminated entry
  • Tilt steering wheel
  • Telescoping steering wheel
  • Driver vanity mirror
  • Passenger vanity mirror
  • Emergency communication system
  • Front beverage holders
  • Rear beverage holders
  • Overhead console
  • Driver door bin
  • Passenger door bin
  • Rear door bins
  • AM/FM radio - SiriusXM
  • Premium audio system - Chevrolet MyLink
  • Radio data system
  • Steering wheel mounted audio controls
  • Speakers - 6
  • Turn-by-turn navigation directions - OnStar Turn-by-Turn Navigation
  • Wireless phone connectivity - Bluetooth
  • 1st row LCD monitors - 2
  • Primary LCD size - 8.0"
  • Smart device integration - Apple CarPlay/Android Auto
  • Basic warranty - 36 months/36,000miles
  • Powertrain warranty - 60 months/100,000miles
  • Corrosion perforation warranty - 72 months/100,000miles
  • Roadside assistance coverage - 60 months/100,000miles
  • Maintenance warranty - 24 months/24,000miles
  • Max seating capacity - 5
  • Front seats - bucket
  • Power driver seat
  • Power 2-way driver lumbar support
  • Front center armrest
  • Rear seats - split-bench
  • Split folding rear seat
  • Rear seat center armrest
  • Engine displacement - 2.5 L
  • Engine horsepower - 197hp @ 6,300RPM
  • Engine torque - 191 lb.-ft. @ 4,400RPM
  • Engine bore x stroke - 88.0mm x 101.0mm (3.46" x 3.98")
  • Compression ratio - 11.30 to 1
  • Towing capacity - 454kg (1,000lbs)
  • Exterior length - 5,113mm (201.3")
  • Exterior body width - 1,854mm (73.0")
  • Exterior height - 1,496mm (58.9")
  • Wheelbase - 2,837mm (111.7")
  • Turning radius - 5.9m (19.3')
  • Front legroom - 1,163mm (45.8")
  • Rear legroom - 1,011mm (39.8")
  • Front headroom - 1,013mm (39.9")
  • Rear headroom - 950mm (37.4")
  • Front hiproom - 1,394mm (54.9")
  • Rear hiproom - 1,374mm (54.1")
  • Front shoulder room - 1,471mm (57.9")
  • Rear shoulder room - 1,445mm (56.9")
  • Passenger volume - 2,973L (105.0 cu.ft.)
  • Interior cargo volume - 532 L (19 cu.ft.)
  • Interior maximum cargo volume - 532 L (19 cu.ft.)
  • Rear cargo - trunk
  • Power door mirrors
  • Bumpers - body-color
  • Engine liters - 2.5
  • Cylinder configuration - I-4
  • Horsepower - 197hp @ 6,300RPM
  • Torque - 191 lb.-ft. @ 4,400RPM
  • Number of valves - 16
  • Variable valve control
  • Engine location - front
  • Recommended fuel - Regular Unleaded
  • Transmission - 6 speed automatic
  • Drive type - front-wheel
  • Fuel economy combined - 25mpg
  • Fuel tank capacity - 18.5gal.
  • Fuel economy city - 22mpg
  • Fuel economy highway - 30mpg
  • 4 wheel disc brakes
  • ABS brakes
  • Brake assist
  • Dual front impact airbags
  • Dual front side impact airbags
  • Overhead airbag
  • Knee airbag
  • Rear side impact airbag
  • Occupant sensing airbag
  • Panic alarm
  • Ignition disable
  • Security system
  • Electronic stability
  • Traction control
  • Four wheel independent suspension
  • Front anti-roll bar
  • Rear anti-roll bar
  • Power steering
  • Speed-sensing steering
  • Front tires - 235/50SR18.0
  • Rear tires - 235/50SR18.0
  • Wheel size - 18"
  • Fully automatic headlights
  • Delay-off headlights
  • Variably intermittent wipers
  • Rear window defroster
  • Front reading lights
  • Rear reading lights
  • Display - analog
  • Tachometer
  • Compass
  • Low tire pressure warning
  • Trip computer
  • Exterior parking camera rear


  MSRP Engine Transmission City/Hwy mpg
LS w/1FL 2018 Chevrolet Impala Sedan LS w/1FL Search New $27,895   197-hp 2.5L 4-cyl  6-spd auto  22 / 30  
LS w/1LS 2018 Chevrolet Impala Sedan LS w/1LS Search New $27,895   197-hp 2.5L 4-cyl  6-spd auto  22 / 30  
LT w/1LT 2018 Chevrolet Impala Sedan LT w/1LT Search New $30,420   197-hp 2.5L 4-cyl  6-spd auto  22 / 30  
Premier w/2LZ 2018 Chevrolet Impala Sedan Premier w/2LZ Search New $36,620   305-hp 3.6L 6-cyl  6-spd auto  19 / 28  


Driving Impression

New Car Test Drive

Performance with the 2.5-liter four-cylinder engine is fine for commuting most family use, but when power is needed for passing, the acceleration falls short of the spurt that’s available with the 3.6-liter V6, with its vivid acceleration that can almost make it feel like a sport sedan. It will do zero to sixty miles per hour in a healthy 6.8 seconds, bringing smooth, strong power.

The six-speed automatic can be shifted manually, using a switch on the lever, whose action is unfortunately awkward on account of the tall center console. Also unfortunately, the transmission isn’t seamless like some earlier GM transmissions. It shifts quickly enough, but if you’re not smooth with your foot, its response will be imperfect. So if you’re rough on the gas pedal, the transmission might be rough on you.

The Impala’s road manners are among the best in its large class, with composure and balance that’s better than the Toyota Avalon, Hyundai Azera, and Ford Taurus. It feels almost athletic out on the road, which is saying a lot for a full-size front-wheel-drive car. Quick and accurate, the belt-driven electric power steering never feels heavy or sluggish.

The Impala adeptly balances handling and a comfortable ride. Rebound springs help keep body lean under control. Excellent suspension damping keeps the ride subtle and restrained, although it feels a bit stiffer when rolling over small bumps than when encountering large ones.

Walk Around

New Car Test Drive

The Impala attempts to be muscular with its chiseled lines. Its proportions are similar to the Buick Lacrosse and Cadillac XTS, but the Caddy pulls it off best, with the Buick second.

However the Impala profile is sophisticated and the lines fairly crisp. The hood is invigorating, with stamped lines and ribs. The rear is an intricate intersection of surfaces, distinct from the Lacrosse and XTS.

Interior Overview

New Car Test Drive

The Impala is more spacious than the Toyota Avalon and Hyundai Azera, with ample room for five people and a their luggage if it’s not too much, in a sizeable trunk that’s 18.8 cubic feet. However the Impala doesn’t feel as big as other full-size cars.

The shape of the sweeping dual-cowl dashboard is lovely, but it’s ruined by a complex and heavy-handed mishmash of textures, lines, and materials. There are lots of storage bins in the cabin. The audio system has a hidden storage compartment behind the LCD screen. GM’s OnStar system includes a WiFi hotspot.

Support in the front seats is about the best in class, while there’s enough headroom and legroom for tall people. The power driver’s seat has an especially broad height range.

Although the back seat is wide and well shaped, the bottom cushion is low, flat, and a bit short. Yet headroom is still a bit tight, and the seat support could be better. Legroom is near limousine-level, while entry and exit is made easier by doors that are tall and wide.

As for cabin silence, the four-cylinder models include active noise cancellation, while upper trim levels are fitted with additional sound deadening and thicker glass.


New Car Test Drive

The Impala offers an attractive body, composed handling and a satisfying ride. The inline four-cylinder does the job almost all of the time, as does the six-speed automatic. The V6 offers a lot more acceleration, for 3 less mpg.

Sam Moses contributed to this review, with staff reports.

Model Lineup

New Car Test Drive

Impala LS ($27,895) has the four-cylinder engine plus air conditioning, six-speaker audio, keyless entry, cloth upholstery, a power driver’s seat, rearview camera, 10 airbags, 8.0-inch touchscreen, and 18-inch steel wheels. Few options are available for the LS, which is marketed largely to fleet buyers. (Prices are MSRP and do not include the $875 destination charge.)

Impala LT ($30,220) also is four-cylinder. but adds Chevrolet’s MyLink infotainment, cloth/leatherette upholstery, power lumbar for front passenger, Bluetooth phone/audio, dual-zone automatic climate control, and 18-inch alloy wheels, Options include leather seating surfaces, 19-inch wheels, and the V6 engine.

Impala Premier ($36,420) gets the 3.6-liter V6, as well as perforated leather-upholstered seats, heated front seats, a power front passenger seat, 19-inch wheels, pushbutton start, and rear parking sensors,. Safety features include forward-collision and lane-departure warnings, and blind-spot monitoring. Navigation and a sunroof are optional.

An optional group of advanced safety features includes adaptive cruise control, forward-collision warning with automatic emergency braking, blind-spot monitoring, and lane-departure warning.

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