2018 Cadillac CT6

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Rating7.8

Ranked #10 in 

Midsize Sedan
Write Review
$54,095 - $88,295
Starting Price 
Nathan Dyer's image
Nathan Dyer 

Senior Editor,

Updated on September 26, 2023

ProsConsWhat's New

Multiple powertrain and configurations available

German rivals offer a better package in terms of fit and finish

The vehicle can now get over-the-air updates

Gets decent fuel economy irrespective of the engine

The pricing isn't competitive enough

Slight reshuffling of optional features and equipment

Better cargo space than rivals

For the price and segment, the optional packages and equipment are limited

Specs & Features

$54,095

price

265 hp @ 5500 rpm

horsepower

295 lb.-ft. @ 3000 rpm

torque

8-Speed Shiftable Automatic

transmission

2.0L 4cyl RWD 8A

engine

-

basic warranty

Overview

The 2018 Cadillac CT6 Sedan is a midsize sedan offered in 4 trims, starting off at a base MSRP of $54,095. For that price, it mainly competes with the Audi A6, the Volvo S90, and the BMW 5 Series. Between 4 trims, the CT6 offers 3 powertrain options. The base engine is a 2.0L turbocharged inline 4 capable of making 265 horsepower and 295 lb-ft of torque. If more power is required, there is also a 335 horsepower-making 3.6L V6 engine available on higher trims. There is also a 3.0L turbocharged V6 available for purchase and this engine puts out a decent 404 horsepower. All three engines are mated to an 8-speed automatic transmission. The CT6 reaches 60 MPH from zero in 6.4 seconds on its base engine and can manage a combined fuel economy between 21 and 25 MPG. We and "Doug DeMuro" have observed that "its transmission is very smooth and you can't feel shift". Check out more on this video.

Buying Advice

With 4 trims on offer, we think the base CT6 does cut it with its standard features like heated mirrors, leather upholstery, front and rear parking sensors, et. However, we recommend this trim with the 3.6L motor which gets you AWD as well for enhanced driveability.

Trims

    Base
    $54,095 onwards
    • 17-inch premium aluminum wheels painted silver
    • Bordeaux convertible soft top
    • Bose nine-speaker audio system
    • Fully equipped
    • GPS navigation
    • Ivory leather-trimmed seats and door panels
    • Light silver interior accents
    • Piano Black interior accents
    • Premium heated leather-trimmed seats
    • Three-inch infotainment system
    Luxury
    $59,195 onwards
    • Navigation system
    • Rain Sensing Windshield wipers
    Premium Luxury
    $65,295 onwards
    • Engine: 3.0L 6cyl AWD 8A
    • Horsepower: 404 hp @ 5700 rpm hp
    • Torque: 400 lb.-ft. @ 2500 rpm
    • 0-60 mph: 5 sec
    • Top Speed: TBD mph
    • Fuel Economy Combined: 21 mpg
    Platinum
    $84,295 onwards
    • Engine: 3.0L 6cyl AWD 8A
    • Horsepower: 404 hp @ 5700 rpm hp
    • Torque: 400 lb.-ft. @ 2500 rpm
    • 0-60 mph: 5 sec
    • Top Speed: TBD mph
    • Fuel Economy Combined: 21 mpg

Compare to similar cars

Price

$54,095- $88,295

Engine

Gasoline

Rating

7.83

Horsepower

404 hp @ 5700 rpm

Torque

400 lb.-ft. @ 2500 rpm

Capacity

5

Read Review

$54,900

Gasoline

7.06

310 hp @ 6500 rpm

272 lb.-ft. @ 4500 rpm

5

Read Review

$38,195- $73,700

Gasoline

7.7

280 hp @ 5200 rpm

306 lb.-ft. @ 2000 rpm

5

Read Review

$49,700- $61,400

Gasoline

7.27

252 hp @ 5000 rpm

273 lb.-ft. @ 1600 rpm

5

Read Review

$69,700- $130,700

Gasoline

8.37

340 hp @ 5300 rpm

325 lb.-ft. @ 2900 rpm

5

Read Review

$82,500- $92,000

Gasoline

8.17

333 hp @ 5500 rpm

325 lb.-ft. @ 2900 rpm

5

Read Review

$54,900- $59,075

Gasoline

8.49

400 hp @ 7000 rpm

354 lb.-ft. @ 1700 rpm

5

Read Review

$51,400- $55,800

Gasoline

9.04

354 hp @ 5400 rpm

369 lb.-ft. @ 1370 rpm

5

Read Review

$71,900- $74,400

Gasoline

8.29

450 hp

406 lb.-ft. @ 1400 rpm

5

Read Review

$189,000- $244,600

Gasoline

8.36

500 hp @ 6000 rpm

487 lb.-ft. @ 1700 rpm

5

Read Review

2018 Cadillac CT6 vs competitor's 0-60

    Car Name
    0-60 MPH
    Quarter Mile
    Top Speed
    SourceCompare
    6.1 sec14.7 sec149 mph
    3.8 sec-189 mph
    3.9 sec12.5 sec155 mph
    2018 BMW M3

    Ranked #3

    4.1 sec12.3 sec155 mph
    2018 Audi S6

    Ranked #4

    4.4 sec13.1 sec155 mph
    2018 Audi S4

    Ranked #4

    4.4 sec13.1 sec155 mph

    2018 Cadillac CT6 vs competitor's MPG

      Car Name
      MPG City
      MPG Highway
      MPG Combined
      Fuel Tank Capacity
      Range (C/H)
      SourceCompare
      22 mpg30 mpg25 mpg19.5 gal.429/585 mi.
      29 mpg34 mpg31 mpg17.4 gal.504.6/591.6 mi.
      25 mpg34 mpg28 mpg16.6 gal.348.6/498 mi.
      25 mpg34 mpg28 mpg19.5 gal.487.5/663 mi.
      25 mpg33 mpg28 mpg22.2 gal.555/732.6 mi.
      2018 Audi A6

      Ranked #2

      25 mpg34 mpg28 mpg19.8 gal.495/673.2 mi.

      2018 Cadillac CT6 vs competitor's dimensions

        Car Name
        Length
        Width
        Height
        Ground Clearance
        Wheelbase
        SourceCompare
        204.1 in.74 in.58 in.7 in.122.4 in.
        227.2 in.79.4 in.64.8 in.6 in.139.8 in.
        219.5 in.75.8 in.59.9 in.6 in.128.6 in.
        215 in.83.9 in.59 in.5 in.132.5 in.
        212.6 in.76.7 in.61 in.6 in.129.7 in.
        208.6 in.77.8 in.58.6 in.7 in.120.7 in.

        2018 Cadillac CT6 vs competitor's trunk space

          Car Name
          Trunk Capacity
          Passenger Volume
          Max Trunk Volume
          SourceCompare
          15.3 cu.ft.106 cu.ft.15.3 cu.ft.
          12 cu.ft.95.4 cu.ft.218.9 cu.ft.
          2018 Audi S4

          Ranked #2

          13 cu.ft.116.8 cu.ft.101.7 cu.ft.
          2018 Audi A7

          Ranked #3

          24.5 cu.ft.127.3 cu.ft.97.1 cu.ft.
          15.2 cu.ft.99.4 cu.ft.15.2 cu.ft.
          13.7 cu.ft.97 cu.ft.13.7 cu.ft.

          2018 Cadillac CT6 vs competitor's cargo space

            Car Name
            Cargo Volume
            Cargo Volume w/ Seat Area
            Max Cargo Volume
            Bed Length
            SourceCompare
            20.8 cu.ft.15.3 cu.ft.15.3 cu.ft.-
            15.4 cu.ft.17 cu.ft.17 cu.ft.-
            19 cu.ft.19 cu.ft.19 cu.ft.-
            2018 Audi A6

            Ranked #4

            6.9 cu.ft.14.1 cu.ft.6.9 cu.ft.-
            67.1 cu.ft.14.7 cu.ft.15.9 cu.ft.69 ft.
            10.4 cu.ft.10.4 cu.ft.10.4 cu.ft.79 ft.

            2018 Cadillac CT6 vs competitor's towing capacity

              Car Name
              Towing Capacity
              Payload Capacity
              Weight
              SourceCompare
              -1104 lbs.3666 lbs.
              1000 lbs.1087 lbs.4013 lbs.
              --4630 lbs.
              --5644 lbs.
              --5017 lbs.
              -970 lbs.5368 lbs.

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              MPG Combined : 25 mpg

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