2018 Cadillac CT6 Plug-in Hybrid Sedan

in Sedans
2018 MODEL


Overall Rating


2018 Cadillac CT6 plug-in hybrid Sedan Complete In-depth Review & Buying Guide

The Cadillac CT6 2.0 E is the result of GM's extensive hybrid research and tech merged into Cadillac's flagship saloon car, the behemoth CT6 released in 2016. It isn't just another attempt at doing something new for the brand but rather, it's here to go toe-to-toe with the best hybrid saloons out there. Can it really become the ;Cadillac of hybrids?

The CT6 plug-in hybrid is manufactured in Shanghai (unlike its gas-powered siblings built in Detroit) and is exported to the USA. If we're talking numbers, the price for the new CT6 2.0 E starts off at an optimistic $76,090 which happens to be a bit more than its rivals, the Acura RLX ($61,900) and the BMW 530e i-performance ($52,650).

See detailed review »


Elegant looks

Exceptional ride quality

Packed with features

Ergonomic interior

Performance figures


Lane-keep assist is not impressive

Brakes feel artificial

Pricey compared to rivals

Polarizing interior design

What's New?

Super Cruise adaptive cruise control

Optional Park Assist

Cocoa Bronze Metallic paint


vehicle bio

base price



4dr Sedan

passenger capacity




engine type


122 cu. in.


265 hp @ 5500 rpm


295 lb.-ft. @ 1700 rpm




brake rotors (f/r)

ventilated disc brakes/ventilated disc brakes



122.4 in.


204.1 in.


74 in.


58 in.

curb weight

4537 lbs.

ground clearance

6.7 in.


passenger volume

106 cu ft.

cargo volume

10.6 cu ft.


zero to 60 mph

5.2 sec.

standing ¼-mile

13.5 sec.

braking (70-0 mph)

177 ft.

fuel economy


15/26/30 mpg

highway range

480 mi.

highway range (evs/hybrids)

480 mi.


basic warranty

4 years/50000 miles

drivetrain warranty

6 years/70000 miles

corrosion warranty

6 years/unlimited

roadside assistance


Pictures & Videos


 2018 Cadillac CT6 plug-in hybrid Sedan in Black Raven color  2018 Cadillac CT6 plug-in hybrid Sedan in Bronze Dune Metallic color  2018 Cadillac CT6 plug-in hybrid Sedan in Crystal White Tricoat color  2018 Cadillac CT6 plug-in hybrid Sedan in Dark Adriatic Blue Metallic color  2018 Cadillac CT6 plug-in hybrid Sedan in Deep Amethyst Metallic color
Black Raven

Vehicle images are guides only and may not reflect the model's exact specifications/features– exact specifications/features should be confirmed with the seller.




Fuel Economy








Trims and Configurations


 2018 Cadillac CT6 plug-in hybrid Sedan Base


265 hp @ 5500 rpm
Premium unleaded (recommended)
26 combined


Style Prices MPG Engine Transmission Drivetrain Seats Colors
4dr Sedan (2.0L 4cyl Turbo gas/electric hybrid EVT) Starting at $75,095 MSRP (15/26/30) 265 hp @ 5500 rpm, 2 L, I4, premium unleaded (recommended)
See Full Specs
evt rear wheel drive 5   Black Raven
  Bronze Dune Metallic
  Crystal White Tricoat
  Dark Adriatic Blue Metallic
  Deep Amethyst Metallic

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Expert Review

CARHP Editorial September 21, 2018


Overall Rating

Caddy's new flagship hybrid boasts a 2.0 turbo 4-cylinder backed up by two 18.4 Kwh electric motors. The system pumps out a healthy 335 hp and 432 lb-ft. of torque via a 4-speed hybrid-electric transmission. The turbo-four alone gives out 265 hp and 295 lb-ft of torque which is adequate.




Fuel Economy






2018 Cadillac CT6 plug-in hybrid Sedan Features

The CT6 2.0 E comes only in one trim and extracts a similar variety of features from its Premium Luxury sibling. Its the only hybrid option offered under the CT6 name. You get the standard Driver Awareness and convenience, comfort and Enhanced vision packages as standard feature list. There is no drivetrain option,rear-wheel drive is the only way to go about the CT6 Hybrid. 

MSRP $76,090
Key Features Electric Variable Transmission (EVT)
  Driver-selectable modes (Tour, Sport, and Hold)
  LED Indirect Fire high beam/low beam headlamps and LED light pipe signature\xa0
  Dual-zone automatic climate control Night Vision
  Bose 10-speaker surround sound system
  Rear Camera Mirror
  Keyless Access, Passive Entry, and Push-Button Start
  Automatic Parking Assist with Braking
  SiriusXM satellite radio


We Recommend

 Unlike its base and luxury siblings, you don't have to buy any optional package with the Hybrid CT6. Its advised to buy this car as it is any further spending would be a choice and not a rational decision. 

2018 Cadillac CT6 plug-in hybrid Sedan Engine


The CT6 Plug-In is a soft driver with a whole bunch of EV range and an excellent adjustable brake-regen system for a decent price - Cnet.com

Engine and Transmission 

The Hybrid powertrain technology of the CT6 hybrid is derived from the highly reputed Chevrolet Bolt EV which means you get a 2.0-liter inline turbo 4-cylinder along with two 18.4 kHz lithium-ion batteries offering an extra 100 hp.

Models Cadillac CT6 PLUG-IN Acura RLX Sport Hybrid BMW 530e iperformance Plug-in Hybrid
MSRP $76,090 $61,900 $52,650
Engine 2.0L l4 3.5L l6 2.0L l4
Transmission electrically variable-speed automatic 7-speed automated manual 8-speed Automatic
Horsepower 265 hp @ 5500 rpm 310 hp @ 6500 rpm 248 hp @ 4000 rpm
Torque 295 lb-ft @ 1700 rpm 273 lb-ft @ 4700 rpm 310 lb-ft @ 1800

The combustion engine gives out 265 hp @ 5500rpm and 295 lb-ft of torque @ 1700rpm. The power output is slightly greater than the BMW 530e 248 hp but it falls short of the Acura RLX at 310 hp. When it comes to torque figures, it stands above the 275 lb-ft but finishes a close second to the 530e 310 lb-ft.

The combined power output of 335 hp is on par with the CT6 turbo 3.0 V6 variant proving no slouch when compared to the non-hybrid versions. The CT6 hybrid also produces more torque than its V6 sibling (400 lb-ft).


 Acceleration isn't that bad either, considering the CT6 is heavier than the competition. It makes the run in 5.2 seconds making it quicker than the 530e but the RLX hybrid is two-tenths of a second quicker to 60mph. The Caddy finishes the quarter-mile run in 13.8 which means that although it isn't as quick as the RLX, it certainly is quicker than the 530e.

Models Cadillac CT6 PLUG-IN Acura RLX Sport Hybrid BMW 530e iperformance Plug-in Hybrid
0-60 MPH 5.2 5.0 6.0
Quarter mile 13.8 13.5 14.9
Engine 2.0 L 3.5 L 2.0 L

(Tons/yr of CO2 Emissions @ 15K mi/year)


Ride and Handling

When it comes to driving the CT6 Hybrid, you'll be able to appreciate the sense of stability and refinement offered by the hybrid powertrain. Undulations of the road pose no threat to the exceptional ride quality making it a capable hybrid cruiser.

The steering feedback isn't impressive and that's something felt by almost all the cars in its class but turn on the sport mode and you'll feel the suspension stiffen up and the steering also works towards giving you a better feel of the road. Furthermore, it is a little hesitant on corners due to the extra weight.


Like all hybrids, the brakes do feel rather artificial due to the complicated system of regenerative braking trying to work its magic. They are sufficiently responsive and give a great amount of confidence to the driver no matter the road conditions.

Anti-lock brakes and Traction Control appear as standard in the new CT6 hybrid and the discs are built by Brembo assuring great performance.

Model Cadillac CT6 PLUG-IN Acura RLX Sport Hybrid BMW 530e iperformance Plug-in Hybrid
Brake Front (in.) N/A 13.0 N/A
Brake Rear (in.) N/A 12.2 N/A
Curb Weight (lbs.) 4,537 4,380 4,266
60-0 MPH (ft.) 117ft N/A N/A

The regenerative brakes recapture kinetic energy that is normally lost during braking and stores it for later use making this feature handy while navigating through heavy traffic during city drives.

The brakes in the front are 12.6 inches in diameter and the rear gets slightly smaller 12.4-inch brakes and together, they can take this 4,537 lb. Caddy from 60mph to a standstill in just 117 ft.

2018 Cadillac CT6 plug-in hybrid Sedan Fuel Economy


The fuel economy is where the CT6 slightly disappoints its buyers. The hybrid system, although very advanced and efficient, couldn't reduce the drawbacks of the extra weight as shown below.

Model Cadillac CT6 PLUG-IN Acura RLX Sport Hybrid BMW 530e iperformance Plug-in Hybrid
MPG (city) 23 28 28
MPG (highway) 29 29 34
MPG (combined) 25 28 30

In the city, the CT6 provides 23 miles to the gallon and it goes up to 29 mpg on the highway. A combined figure of 29 mpg isn't bad for a car of this size but it loses the fight for best fuel economy among the RLX and 530e hybrids.

2018 Cadillac CT6 plug-in hybrid Sedan Interior


The CT6 is a large luxury car, so space is ample for both front and rear occupants, and the lucky ones in the back get to enjoy a standard rear entertainment system. My tester's black-on-black-on-black-on-black leather interior feels cavernous, and materials on the dash and center console only feel slightly worthy of the $70,000-plus price tag. This is where the car falters most against its competitors.- CNET

Seating and Comfort

There's tons of legroom and headroom in the front and the back as you'd expect from a big bruiser Caddy like this one but where the CT6 surprises the most is the position and seating of the driver. Beyond just being spacious, the windshield has been widened to give a perfect view of what lies ahead and everything up front is thoroughly driver-focused.

Model Cadillac CT6 PLUG-IN Acura RLX Sport Hybrid BMW 530e iperformance Plug-in Hybrid
Passenger capacity 5 5 5
Front (Head/Shoulder/Leg) (In.) 40.2/58.3/46.4 37.6/59.6/42.3 38.8/58.7/41.4
Second (Head/Shoulder/Leg) (In.) 38.0/56.2/40.4 36.9/57.0/38.8 37.5/55.9/36.5

The leather-clad seats are broad and perfect for long journeys on the highway. Even the headrests on those seats are positioned brilliantly to mitigate any amount of fatigue. A total of five passengers can sit comfortably and enjoy the ride offered by this hybrid saloon. 


The Cadillac's CUE infotainment system can be found on the center console that has been curved towards the driver for greater convenience and ergonomics.

The number of buttons on the dash has been reduced as the infotainment screen handles almost all the major functions on the interior of the car. The screen responds well to commands and the clarity is sufficient too.

The CUE infotainment system was found to be even quicker than the Mercedes-Benz S550 which is worth bragging about.

Right in front of the driver, the digital gauge cluster can be found which is reconfigurable to a certain limit but isn't a treat to the eyes as the rest of the interior.

Interior Features

  • Android Auto/ Apple Car play support
  • 360 degree camera monitoring
  • 6 USB outlets
  • HDMI video cable
  • Night vision
  • Paddle shifters handle Regenerative braking features
  • Bose surround sound system
  • Dual-zone automatic climate control
  • Sirus XM satellite radio
  • Driver selectable modes (Tour, Sport, and Hold)

Cargo Capacity

The reduced cargo space is a direct result of the positioning of those lithium-ion batteries under the seats and sadly, the CT6 also loses the fight for the most cargo-space among its rivals.

Model Cadillac CT6 PLUG-IN Acura RLX Sport Hybrid BMW 530e iperformance Plug-in Hybrid
Cargo Volume with 2nd row up (ft.3) 10.6 12.0 14.5

2018 Cadillac CT6 plug-in hybrid Sedan Exterior


"Cadillac calls its current design language "Art and Science," and it's a uniquely American interpretation of universal luxury themes. The long hood implies -- correctly -- a powerful rear-wheel-drive sedan, and the crisply tailored aluminum body shows off chiseled lines and an expressive face."-KelleyBlueBook

Dimensions and Weight

As mentioned before, the CT6 is the heaviest among its rivals weighing a staggering 4,537 lbs. It also boasts the greatest wheelbase at 122.4 inches compared to the Acura's 122.2 inches and the Beemer's 117.1 inches. But it isn't as wide as the others when track width is considered. 

Model Cadillac CT6 PLUG-IN Acura RLX Sport Hybrid BMW 530e iperformance Plug-in Hybrid
Curb weight (lbs.) 4,537 4,380 4,266
Length(in) 204.1 197.8 194.6
Width(in) 74.0 74.4 73.5
Height(in) 58.0 57.7 58.4
Ground clearance (in) N/A 4.5 5.9
Wheelbase (in) 122.4 112.2 117.1
Track width (in) F/R 63.4/64.0 64.3/64.2 63.1/64.2

This is an undoubtedly long saloon measuring almost 204 inches which also makes it larger than its competitors.

Exterior features:

Some of the exterior features include-

  • LED Indirect Fire high beam
  • Signature hexagonal chrome grill
  • Rear Camera Mirror
  • 360-degree surveillance cameras
  • Dual-tip chrome exhausts
  • 2.0 E badging
  • 20-inch allow wheels
  • Ultraview Panoramic sunroof
  • Multi-function headlamps
  • New LED tail lamps

2018 Cadillac CT6 plug-in hybrid Sedan Safety

The 2018 Cadillac CT6 Plug-in Hybrid hasn't been tested by NHTSA or IIHS but the car has state-of-the-art safety features and here are a few of them:

  • Front pedestrian braking
  • Lane-keep assist
  • Side blind zone alert
  • Pedestrian safety signal
  • Rear cross traffic alert
  • Antilock Braking System(ABS)
  • Traction Control System (TCS)

2018 Cadillac CT6 plug-in hybrid Sedan Competition

Cadillac CT-6 Plug-In vs. Acura RLX

The RLX was first introduced in 2014 and it took the position of a completely redesigned luxury sports sedan in the Acura stable. A few years later, the RLX Sports Hybrid was offered to the public. Fuel economy, long list of features and hybrid technology derived from the new NSX are all appreciable but it just isn't as sporty as it claims to be due to lackluster handling and body roll. Acura has taken it to another level when it comes to the powertrain as this vehicle comes with no lesser than three electric motors and a V6 engine. It pumps out a combined output of 377 hp and 341 lb-ft of torque and is a tiny bit more efficient than the CT6 2.0E. Does its triumph over the American from Shanghai? Nope. But it does give strong competition to the CT6.

Cadillac CT-6 Plug-In vs. BMW 530e

The 530e i-performance was introduced in 2017 as an essential part of the current 5-series lineup. Now, this is a car that the CT6 Plug-in hybrid really needs to worry about. Not because of its 248 hp combined output (clearly lesser than the CT6) or the 310lb-ft of torque (only a little more than the CT6, just a little bit more) but mostly because of the way it drives, its moderate price tag and how the 530e stands as a suitable alternative to it.

It's clearly got the credentials and has a tastier design that might appeal more to the eco-friendly luxury saloon buyer.

The German hybrid boasts a 2.0 inline-four combined with a 9.2 kWh lithium-ion battery. The transmission is a ZF supplied 8-speed unit and does its job quite well. It does feel a little underpowered but the way that power is put down to the road is where this car needs to be appreciated.

2018 Cadillac CT6 plug-in hybrid Sedan Final Verdict

There are places where the new CT6 2.0E delights you and then there are places where you wish for more. The folks at Cadillac have done a decent job of creating a powerful, elegant hybrid saloon to compete among the best but the very essentials of a hybrid like the fuel economy are somewhat compromised.

However, if you can forgive a few shortcomings and would love to experience its refinement and luxury firsthand, the CT6 Plug-in Hybrid would be brilliant as a daily driver.