2019 Honda Clarity Plug-In Hybrid vs. 2018 Cadillac CT6 Plug-In

Detailed Review, Specifications & Comparison

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2019 Honda Clarity Plug-In Hybrid

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Both the Clarity Plug-In Hybrid and the CT6 Plug-In have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems and rearview cameras.


There are over 15 percent more Honda dealers than there are Cadillac dealers, which makes it easier should you ever need service under the Clarity Plug-In Hybrid’s warranty.


J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Honda vehicles are more reliable than Cadillac vehicles. J.D. Power ranks Honda 12th in reliability, above the industry average. With 46 more problems per 100 vehicles, Cadillac is ranked 27th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Honda vehicles are more reliable than Cadillac vehicles. Consumer Reports ranks Honda 13 places higher in reliability than Cadillac.

Fuel Economy and Range

On the EPA test cycle the Clarity Plug-In Hybrid running on electricity gets better fuel mileage than the CT6 Plug-In:




CT6 Plug-In



Running on electricity

117 city/102 hwy

56 city/71 hwy



Running its gasoline engine

44 city/40 hwy

23 city/29 hwy


The Clarity Plug-In Hybrid’s maximum driving range in pure electric mode is 47 miles, 52% further than the CT6 Plug-In’s 31-mile range.

To lower fuel costs and make buying fuel easier, the Honda Clarity Plug-In Hybrid uses regular unleaded gasoline. The CT6 Plug-In requires premium for maximum efficiency, which can cost 20 to 55 cents more per gallon.

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Honda Clarity Plug-In Hybrid higher (8 out of 10) than the Cadillac CT6 Plug-In (3). This means the Clarity Plug-In Hybrid produces up to 30 pounds less smog-producing pollutants than the CT6 Plug-In every 15,000 miles.

Tires and Wheels

The Clarity Plug-In Hybrid’s tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the CT6 Plug-In’s standard 50 series front tires.

Suspension and Handling

For better maneuverability, the Clarity Plug-In Hybrid’s turning circle is 1.6 feet tighter than the CT6 Plug-In’s (38.4 feet vs. 40 feet).


The Honda Clarity Plug-In Hybrid may be more efficient, handle and accelerate better because it weighs about 500 pounds less than the Cadillac CT6 Plug-In.

The Clarity Plug-In Hybrid is 11.4 inches shorter than the CT6 Plug-In, making the Clarity Plug-In Hybrid easier to handle, maneuver and park in tight spaces.

Passenger Space

The Clarity Plug-In Hybrid has 1.4 inches more front shoulder room, 2.1 inches more rear hip room and 1.1 inches more rear shoulder room than the CT6 Plug-In.

Cargo Capacity

The Clarity Plug-In Hybrid has a much larger trunk than the CT6 Plug-In (15.5 vs. 10.6 cubic feet).

The Clarity Plug-In Hybrid’s standard rear seats fold to accommodate long and bulky cargo. The CT6 Plug-In doesn’t offer folding rear seats.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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