2020 Porsche Panamera vs. 2020 Cadillac CT5 V-Series

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/07/13

Both the Panamera and CT5 V-Series have child safety locks to prevent children from opening the rear doors. The Panamera offers optional power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The CT5 V-Series’ child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.

The Panamera offers available whiplash protection, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the whiplash protection system moves the headrests forward to prevent neck and spine injuries. The CT5 V-Series doesn’t offer a whiplash protection system.

A passive infrared night vision system optional on the Panamera helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard and even aims one of the vehicle’s headlights in the direction of the person or object. The CT5 V-Series doesn’t offer a night vision system.

Both the Panamera and the CT5 V-Series have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger 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, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems and around view monitors.

Warranty

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The Panamera’s corrosion warranty is 6 years longer than the CT5 V-Series’ (12 vs. 6 years).

Reliability

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/07/13

J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Porsche vehicles are better in initial quality than Cadillac vehicles. J.D. Power ranks Porsche 15th in initial quality. With 4 more problems per 100 vehicles, Cadillac is ranked 17th.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Porsche vehicles are more reliable than Cadillac vehicles. J.D. Power ranks Porsche second in reliability, above the industry average. With 58 more problems per 100 vehicles, Cadillac is ranked 23rd.

From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that Porsche vehicles are more reliable than Cadillac vehicles. Consumer Reports ranks Porsche fourth in reliability. Cadillac is ranked 30th.

Engine

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The Panamera 4S’ standard 2.9 turbo V6 produces 80 more horsepower (440 vs. 360) than the CT5 V-Series’ 3.0 turbo V6. The Panamera GTS’ standard 4.0 turbo V8 produces 93 more horsepower (453 vs. 360) and 52 lbs.-ft. more torque (457 vs. 405) than the CT5 V-Series’ 3.0 turbo V6. The Panamera 4 E-Hybrid’s standard 2.9 turbo V6 hybrid produces 97 more horsepower (457 vs. 360) and 111 lbs.-ft. more torque (516 vs. 405) than the CT5 V-Series’ 3.0 turbo V6. The Panamera Turbo S E-Hybrid’s standard 4.0 turbo V8 hybrid produces 317 more horsepower (677 vs. 360) and 221 lbs.-ft. more torque (626 vs. 405) than the CT5 V-Series’ 3.0 turbo V6.

As tested in Car and Driver the Porsche Panamera (base engine) is faster than the Cadillac CT5 V-Series:

Panamera

CT5 V-Series

Zero to 60 MPH

4.7 sec

4.8 sec

As tested in Car and Driver the Porsche Panamera is faster than the Audi S7:

Panamera Turbo

Panamera Turbo S E-Hybrid

CT5 V-Series

Zero to 60 MPH

3 sec

2.9 sec

4.8 sec

Zero to 100 MPH

7.5 sec

7 sec

11.5 sec

5 to 60 MPH Rolling Start

4.3 sec

4 sec

5.5 sec

Quarter Mile

11.3 sec

11.1 sec

13.3 sec

Speed in 1/4 Mile

122 MPH

126 MPH

107 MPH

Top Speed

190 MPH

192 MPH

168 MPH

Fuel Economy and Range

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/07/13

On the EPA test cycle the Panamera E-Hybrid running on electricity gets better fuel mileage than the CT5 V-Series:

MPGe

Panamera E-Hybrid

AWD

2.9 turbo V6 Hybrid

48 city/54 hwy

4.0 turbo V8 Hybrid

46 city/51 hwy

MPG

CT5 V-Series

RWD

3.0 turbo V6

18 city/26 hwy

AWD

3.0 turbo V6

17 city/25 hwy

On the EPA test cycle the Panamera running its gasoline engine gets better fuel mileage than the CT5 V-Series:

MPG

Panamera

RWD

3.0 turbo V6

19 city/27 hwy

AWD

3.0 turbo V6

19 city/26 hwy

2.9 turbo V6 Hybrid

21 city/24 hwy

4.0 turbo V8 Hybrid

19 city/22 hwy

2.9 turbo V6

18 city/26 hwy

Turbo 4.0 turbo V8

18 city/25 hwy

CT5 V-Series

RWD

3.0 turbo V6

18 city/26 hwy

AWD

3.0 turbo V6

17 city/25 hwy

The Panamera 4 E-Hybrid can drive on battery power alone for up to 14 miles. The CT5 V-Series must run its internal combustion engine to move.

Regenerative brakes improve the Panamera’s fuel efficiency by converting inertia back into energy instead of wasting it. The CT5 V-Series doesn’t offer a regenerative braking system.

The Panamera E Hybrid’s standard fuel tank has 3.6 gallons more fuel capacity than the CT5 V-Series (21.1 vs. 17.5 gallons), for longer range between fill-ups. The Panamera’s standard fuel tank has 6.2 gallons more fuel capacity than the CT5 V-Series (23.7 vs. 17.5 gallons).

Transmission

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The Panamera offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The CT5 V-Series doesn’t offer an SMG or a conventional manual transmission.

Brakes and Stopping

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For better stopping power the Panamera’s brake rotors are larger than those on the CT5 V-Series:

Panamera Base

Panamera 4S

Panamera E-Hybrid/GTS

Panamera Turbo

Panamera

CT5 V-Series

Front Rotors

13.8 inches

14.2 inches

15.4 inches

16.1 inches

16.5 inches

13.6 inches

Rear Rotors

13 inches

13 inches

14.4 inches

15 inches

16.1 inches

12.4 inches

The Panamera’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the CT5 V-Series are solid, not vented.

The Panamera offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The CT5 V-Series doesn’t offer ceramic brake rotors.

Tires and Wheels

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For better traction, the Panamera has larger standard tires than the CT5 V-Series (F:265/45R19 & R:295/40R19 vs. 245/40R19). The Panamera’s optional tires are larger than the largest tires available on the CT5 V-Series (F:275/40R20 & R:315/35R20 vs. 245/40R19).

The Panamera’s optional 275/35R21 front and 315/30R21 rear tires provide better handling because they have a lower 35 series front and 30 series rear profile (height to width ratio) that provides a stiffer sidewall than the CT5 V-Series’ 40 series tires.

For better ride, handling and brake cooling the Panamera offers optional 21-inch wheels. The CT5 V-Series’ largest wheels are only 19-inches.

Suspension and Handling

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The Panamera offers active sway bars, which help keep it flat and controlled during cornering, but disconnect at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The CT5 V-Series doesn’t offer an active sway bar system.

The Panamera offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Cadillac doesn’t offer an active suspension on the CT5 V-Series.

The Panamera has a standard automatic load leveling suspension to keep ride height level with a heavy load or when towing. The CT5 V-Series doesn’t offer a load leveling suspension.

For a smoother ride and more stable handling, the Panamera’s wheelbase is .1 inches longer than on the CT5 V-Series (116.1 inches vs. 116 inches). The Panamera Executive’s wheelbase is 6 inches longer than on the CT5 V-Series (122 inches vs. 116 inches).

For better handling and stability, the average track (width between the wheels) on the Panamera is 2.7 inches wider in the front and .9 inches wider in the rear than the track on the CT5 V-Series.

The Panamera Turbo handles at 1.00 G’s, while the CT5 V-Series pulls only .99 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the Panamera w/Rear Axle Steering’s turning circle is 1.6 feet tighter than the CT5 V-Series’ (37.4 feet vs. 39 feet).

Chassis

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The front grille of the Panamera uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The CT5 V-Series doesn’t offer active grille shutters.

The Panamera offers available computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The CT5 V-Series doesn’t offer active noise cancellation.

As tested by Car and Driver, the interior of the Panamera Turbo is quieter than the CT5 V-Series:

Panamera

CT5 V-Series

Full-Throttle

75 dB

86 dB

70 MPH Cruising

64 dB

67 dB

Passenger Space

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/07/13

Because it has more passenger and cargo room, the EPA rates the Panamera 4dr Hatchback a Large car, while the CT5 V-Series is rated a Mid-size.

The Panamera has 9 cubic feet more passenger volume than the CT5 V-Series (108 vs. 99).

For enhanced passenger comfort on long trips the Panamera’s available rear seats recline. The CT5 V-Series’ rear seats don’t recline.

Cargo Capacity

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The Panamera has a much larger trunk with its rear seat up than the CT5 V-Series (17.6 vs. 11.9 cubic feet).

The Panamera Sport Turismo has a much larger trunk with its rear seat up than the CT5 V-Series (18.3 vs. 11.9 cubic feet).

Pressing a switch automatically lowers the Panamera’s rear seats, to make changing between passengers and cargo easier. The CT5 V-Series doesn’t offer automatic folding seats.

To make loading and unloading groceries and cargo easier, especially for short adults, the Panamera has a standard power liftgate, which opens and closes automatically by pressing a button, or optionally by just kicking your foot under the back bumper, completely leaving your hands free. The CT5 V-Series doesn’t offer a power trunk, so its trunk has to be closed manually.

Servicing Ease

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J.D. Power and Associates surveys of service recipients show that Porsche service is better than Cadillac. J.D. Power ranks Porsche first in service department satisfaction. With a 13% lower rating, Cadillac is ranked third.

Ergonomics

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Unlike the driver-only memory system in the CT5 V-Series, the Panamera offers an optional driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position, outside mirror angle, climate settings and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.

To improve rear visibility by keeping the rear window clear, the Panamera offers an optional rear wiper. The CT5 V-Series doesn’t offer a rear wiper.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Panamera offers available headlight washers to keep headlight output high. The CT5 V-Series doesn’t offer headlight washers.

The CT5 V-Series’ optional cornering lamps activate a lamp on the front corner when the turn signal is activated. The Panamera’s optional adaptive cornering lights turn the actual headlight unit up to several degrees, depending on steering wheel angle and vehicle speed. This lights a significant distance into corners at any speed.

A power rear sunshade is optional in the Panamera (except Sport Turismo) and power rear side window sunshades are optional in the Panamera to help block heat and glare for the rear passengers. The CT5 V-Series doesn’t offer a rear or rear side window sunshades.

The Panamera has standard heated front seats. Heated front seats cost extra on the CT5 V-Series. The Panamera also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the CT5 V-Series.

Optional air conditioned front and rear seats keep the Panamera’s passengers comfortable and take the sting out of hot leather in summer. The CT5 V-Series doesn’t offer air-conditioned seats in the rear.

Both the Panamera and the CT5 V-Series offer optional massaging front seats. The Panamera also offers optional massaging rear seats in order to maximize comfort and eliminate fatigue on long trips. Massaging rear seats aren’t available in the CT5 V-Series.

The Panamera Sport Turismo offers an optional 115-volt a/c outlet in the cargo area, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The CT5 V-Series doesn’t offer a house-current electrical outlet.

Model Availability

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The Porsche Panamera comes in four door hatchback and station wagon bodystyles; the Cadillac CT5 V-Series isn’t available as a station wagon.

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