2018 Porsche Panamera vs. 2018 Cadillac ATS-V

Detailed Review, Specifications & Comparison

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Safety

For enhanced safety, the front seat shoulder belts of the Porsche Panamera are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Cadillac ATS-V doesn’t offer height-adjustable front seat belts.

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 ATS-V doesn’t offer a whiplash protection system.

The Panamera offers optional Porsche Active Safe, which use forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The ATS-V offers an available collision warning system without the automated brake feature that would prevent or reduce the collision if the driver fails to react.

The Panamera offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The ATS-V doesn’t offer all-wheel drive.

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 ATS-V doesn’t offer a night vision system.

The Panamera offers an optional Surround View System to allow the driver to see objects all around the vehicle on a screen. The ATS-V only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

Both the Panamera and the ATS-V have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available lane departure warning systems and blind spot warning systems.

Warranty

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

Reliability

J.D. Power and Associates’ 2017 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 third in initial quality, above the industry average. With 27 more problems per 100 vehicles, Cadillac is ranked 20th, below the industry average.

J.D. Power and Associates’ 2018 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 86 more problems per 100 vehicles, Cadillac is ranked 27th.

From surveys of all its subscribers, Consumer Reports’ April 2018 Auto Issue reports that Porsche vehicles are more reliable than Cadillac vehicles. Consumer Reports ranks Porsche 14 places higher in reliability than Cadillac.

Engine

The Panamera 4 E-Hybrid’s standard 2.9 turbo V6 hybrid produces 71 lbs.-ft. more torque (516 vs. 445) than the ATS-V’s 3.6 turbo V6. The Panamera Turbo’s standard 4.0 turbo V8 produces 86 more horsepower (550 vs. 464) and 122 lbs.-ft. more torque (567 vs. 445) than the ATS-V’s 3.6 turbo V6. The Panamera Turbo S E-Hybrid’s standard 4.0 turbo V8 hybrid produces 216 more horsepower (680 vs. 464) and 181 lbs.-ft. more torque (626 vs. 445) than the ATS-V’s 3.6 turbo V6.

As tested in Motor Trend the Panamera Turbo is faster than the Cadillac ATS-V (base engine) (automatics tested):

 

Panamera

ATS-V

Zero to 60 MPH

3 sec

4 sec

Quarter Mile

11.4 sec

12.3 sec

Speed in 1/4 Mile

121.2 MPH

114.6 MPH

Fuel Economy and Range

On the EPA test cycle the Panamera Turbo S E-Hybrid running on electricity gets better fuel mileage than the ATS-V Auto (48 city/51 hwy MPGe vs. 17 city/25 hwy).

On the EPA test cycle the Panamera Turbo gets better fuel mileage than the ATS-V Auto (18 city/25 hwy vs. 17 city/25 hwy). The Panamera Turbo gets better fuel mileage than the ATS-V Manual (18 city/25 hwy vs. 16 city/23 hwy).

On the EPA test cycle the Panamera RWD Auto with its standard engine gets better fuel mileage than the ATS-V Auto (21 city/28 hwy vs. 17 city/25 hwy).

The Panamera 4 E-Hybrid can drive on battery power alone for up to 31 miles. The ATS-V must run its internal combustion engine to move.

An engine control system that can shut down half of the engine’s cylinders helps improve the Panamera Turbo’s fuel efficiency. The ATS-V doesn’t offer a system that can shut down part of the engine.

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

In heavy traffic or at stoplights the Panamera’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The ATS-V doesn’t offer an automatic engine start/stop system.

The Panamera E Hybrid’s standard fuel tank has 5.1 gallons more fuel capacity than the ATS-V (21.1 vs. 16 gallons), for longer range between fill-ups. The Panamera’s standard fuel tank has 7.7 gallons more fuel capacity than the ATS-V (23.7 vs. 16 gallons).

Transmission

The Porsche Panamera comes standard with an automatic transmission, for driver comfort, especially in the city. Automatic costs extra on the ATS-V.

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 ATS-V doesn’t offer an SMG.

Brakes and Stopping

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

 

Panamera Turbo

Panamera opt.

ATS-V

Front Rotors

16.1 inches

16.5 inches

14.5 inches

Rear Rotors

15 inches

15.4 inches

13.3 inches

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 ATS-V doesn’t offer ceramic brake rotors.

The Panamera stops much shorter than the ATS-V:

 

Panamera

ATS-V

 

70 to 0 MPH

153 feet

163 feet

Car and Driver

60 to 0 MPH

101 feet

103 feet

Motor Trend

Tires and Wheels

For better traction, the Panamera has larger standard tires than the ATS-V (F:265/45R19 & R:295/40R19 vs. F:255/35R18 & R:275/35R18). The Panamera’s optional tires are larger than the largest tires available on the ATS-V (F:275/40R20 & R:315/35R20 vs. F:255/35R18 & R:275/35R18).

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

For better ride, handling and brake cooling the Panamera has standard 19-inch wheels. Only 18-inch wheels are available on the ATS-V. The Panamera offers optional 21-inch wheels.

Suspension and Handling

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 ATS-V 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 ATS-V.

The Panamera has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The Panamera’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The ATS-V doesn’t offer a load leveling suspension.

For a smoother ride and more stable handling, the Panamera’s wheelbase is 6.8 inches longer than on the ATS-V (116.1 inches vs. 109.3 inches). The Panamera Executive’s wheelbase is 12.7 inches longer than on the ATS-V (122 inches vs. 109.3 inches).

For better handling and stability, the average track (width between the wheels) on the Panamera is 5 inches wider in the front and 3.9 inches wider in the rear than the average track on the ATS-V.

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

Chassis

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 ATS-V doesn’t offer active grille shutters.

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

 

Panamera

ATS-V

At idle

44 dB

50 dB

Full-Throttle

75 dB

83 dB

70 MPH Cruising

64 dB

65 dB

Passenger Space

Because it has more passenger and cargo room, the EPA rates the Panamera 4dr Hatchback a Large car, while the ATS-V Sedan is rated a Compact.

The Panamera has 17.1 cubic feet more passenger volume than the ATS-V Sedan (108 vs. 90.9).

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

Cargo Capacity

The Panamera has a much larger trunk with its rear seat up than the ATS-V Sedan (17.6 vs. 10.4 cubic feet).

The Panamera Sport Turismo has a much larger trunk with its rear seat up than the ATS-V (18.3 vs. 10.4 cubic feet).

Pressing a switch automatically lowers the Panamera’s rear seats, to make changing between passengers and cargo easier. The ATS-V 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 ATS-V doesn’t offer a power trunk.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Porsche service is better than Cadillac. J.D. Power ranks Porsche second in service department satisfaction. With a 3% lower rating, Cadillac is ranked third.

Ergonomics

Unlike the driver-only memory system in the ATS-V, 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.

The Panamera’s instruments include an oil pressure gauge and a temperature gauge – which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The ATS-V does not have an oil pressure gauge.

The Panamera’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The ATS-V’s standard rear power window switches have to be held the entire time to open or close them fully.

The Panamera’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The ATS-V’s standard manually variable intermittent wipers have to be constantly adjusted.

To improve rear visibility by keeping the rear window clear, the Panamera offers an optional rear wiper. The ATS-V 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 ATS-V doesn’t offer headlight washers.

A power rear sunshade is optional in the Panamera to help block heat and glare for the rear passengers. The ATS-V doesn’t offer a rear sunshade.

Both the Panamera and the ATS-V have standard heated front seats. 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 ATS-V.

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

On extremely cold winter days, the Panamera’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the car heater warms up. The ATS-V doesn’t offer a heated steering wheel.

To keep a safe, consistent following distance, the Panamera offers an optional Adaptive Cruise Control, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The ATS-V doesn’t offer an adaptive cruise control.

Economic Advantages

Insurance will cost less for the Panamera owner. The Complete Car Cost Guide estimates that insurance for the Panamera will cost $870 to $2330 less than the ATS-V over a five-year period.

The Panamera will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the Panamera will retain 57.41% of its original price after five years, while the ATS-V only retains 38.33% to 39.16%.

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

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