Compare the2023 Porsche PanameraVS 2023 Alfa Romeo Giulia Quadrifoglio

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 Alfa Romeo Giulia Quadrifoglio doesn’t offer height-adjustable seat belts.

Both the Panamera and Giulia Quadrifoglio have child safety locks to prevent children from opening the rear doors. The Panamera has 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 Giulia Quadrifoglio’s 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 all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Giulia Quadrifoglio 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 Giulia Quadrifoglio 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 Giulia Quadrifoglio 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 Giulia Quadrifoglio 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, lane departure warning systems, rearview cameras, available crash mitigating brakes and blind spot warning systems.

The Porsche Panamera weighs 416 to 1606 pounds more than the Alfa Romeo Giulia Quadrifoglio. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

The Panamera’s corrosion warranty is 7 years longer than the Giulia Quadrifoglio’s (12 vs. 5 years).

There are over 40 percent more Porsche dealers than there are Alfa Romeo dealers, which makes it easier should you ever need service under the Panamera’s warranty.

To reliably start during all conditions and help handle large electrical loads, the Panamera has a standard 850-amp battery. The Giulia Quadrifoglio’s 525-amp battery isn’t as powerful.

J.D. Power and Associates’ 2022 Initial Quality Study of new car owners surveyed provide the statistics that show that Porsche vehicles are better in initial quality than Alfa Romeo vehicles. With 11 fewer problems per 100 vehicles, JD Power ranks Porsche higher than Alfa Romeo.

J.D. Power and Associates’ 2022 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Porsche vehicles are more reliable than Alfa Romeo vehicles. J.D. Power ranks Porsche above average in long-term dependability. With 30 more problems per 100 vehicles in the first three years of ownership, Alfa Romeo is rated below average.

The Panamera 4 E-Hybrid’s standard 2.9 turbo V6 hybrid produces 73 lbs.-ft. more torque (516 vs. 443) than the Giulia Quadrifoglio’s 2.9 turbo V6. The Panamera GTS’ standard 4.0 turbo V8 produces 14 lbs.-ft. more torque (457 vs. 443) than the Giulia Quadrifoglio’s 2.9 turbo V6. The Panamera Turbo S E-Hybrid’s standard 4.0 turbo V8 hybrid produces 185 more horsepower (690 vs. 505) and 198 lbs.-ft. more torque (641 vs. 443) than the Giulia Quadrifoglio’s 2.9 turbo V6.

As tested in Motor Trend the Panamera 4S 2.9 turbo V6 is faster than the Alfa Romeo Giulia Quadrifoglio:

As tested in Motor Trend the Panamera GTS 4.0 turbo V8 is faster than the Alfa Romeo Giulia Quadrifoglio (base engine):

On the EPA test cycle the Panamera Sedan running on electricity gets better mileage than the Giulia Quadrifoglio:

The Panamera can travel with zero emissions for 17 to 19 miles (dependent on model). The Giulia Quadrifoglio can’t move without running its internal combustion engine.

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

The Panamera E-Hybrid’s standard fuel tank has 5.8 gallons more fuel capacity than the Giulia Quadrifoglio (21.1 vs. 15.3 gallons), for longer range between fill-ups. The Panamera’s standard fuel tank has 8.4 gallons more fuel capacity than the Giulia Quadrifoglio (23.7 vs. 15.3 gallons).

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 Giulia Quadrifoglio doesn’t offer an SMG or a conventional manual transmission.

The Panamera’s optional launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The Giulia Quadrifoglio doesn’t offer launch control.

For better stopping power the Panamera Turbo S’ front brake rotors are larger than those on the Giulia Quadrifoglio:

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 Giulia Quadrifoglio doesn’t offer ceramic brake rotors.

The Panamera stops much shorter than the Giulia Quadrifoglio:

For better traction, the Panamera has larger standard tires than the Giulia Quadrifoglio (F:265/45R19 & R:295/40R19 vs. F:245/35R19 & R:285/30R19). The Panamera Turbo S/Turbo S E-Hybrid’s tires are larger than the largest tires available on the Giulia Quadrifoglio (F:275/35R21 & R:325/30R21 vs. F:245/35R19 & R:285/30R19).

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

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 Giulia Quadrifoglio 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. Alfa Romeo doesn’t offer an active suspension on the Giulia Quadrifoglio.

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

For a smoother ride and more stable handling, the Panamera’s wheelbase is 5.1 inches longer than on the Giulia Quadrifoglio (116.1 inches vs. 111 inches). The Panamera Executive’s wheelbase is 11 inches longer than on the Giulia Quadrifoglio (122 inches vs. 111 inches).

For better handling and stability, the average track (width between the wheels) on the Panamera is 4.2 inches wider in the front and 1.4 inches wider in the rear than the track on the Giulia Quadrifoglio.

The Panamera GTS handles at 1.05 G’s, while the Giulia Quadrifoglio pulls only .97 G’s of cornering force in a Motor Trend skidpad test.

The Panamera GTS executes Motor Trend’s “Figure Eight” maneuver quicker than the Giulia Quadrifoglio (23.7 seconds @ .86 average G’s vs. 24.2 seconds @ .84 average G’s).

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 Giulia Quadrifoglio 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 Giulia Quadrifoglio doesn’t offer active noise cancellation.

Because it has more passenger and cargo room, the EPA rates the Panamera Sedan a Large car, while the Giulia Quadrifoglio is rated a Mid-size.

The Panamera has .6 cubic feet more passenger volume than the Giulia Quadrifoglio (96 vs. 95.4).

The Panamera has 2 inches more front shoulder room, .4 inches more rear headroom, .5 inches more rear legroom and .7 inches more rear shoulder room than the Giulia Quadrifoglio.

For enhanced passenger comfort on long trips the Panamera’s available rear seats recline. The Giulia Quadrifoglio’s rear seats don’t recline.

The Panamera has a much larger trunk with its rear seat up than the Giulia Quadrifoglio (17.6 vs. 12 cubic feet).

The Panamera Sport Turismo has a much larger trunk with its rear seat up than the Giulia Quadrifoglio (18.3 vs. 12 cubic feet).

To make loading and unloading groceries and cargo easier when your hands are full, the Panamera’s power liftgate can be opened just by kicking your foot under the back bumper, leaving your hands completely free. The Panamera’s power liftgate can also be opened or closed by pressing a button. The Giulia Quadrifoglio doesn’t offer a power or hands-free opening trunk.

J.D. Power and Associates surveys of service recipients show that Porsche service is better than Alfa Romeo. J.D. Power ranks Porsche third in service department satisfaction. With a 78% lower rating, Alfa Romeo is ranked 32nd.

Unlike the driver-only memory seat and mirrors in the Giulia Quadrifoglio, 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 Giulia Quadrifoglio does not have an oil pressure gauge.

The Panamera offers an optional heads-up display that projects speed, tachometer and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Giulia Quadrifoglio doesn’t offer a heads-up display.

To improve rear visibility by keeping the rear window clear, the Panamera offers an optional rear wiper. The Giulia Quadrifoglio doesn’t offer a rear wiper.

The Panamera’s LED headlights produce a white, bright light using less electricity than the Giulia Quadrifoglio’s xenon high intensity discharge (HID) headlights. HID headlights can be slow to reach full brightness or power cycle, causing issues when flashing them to signal other vehicles; LED headlights light instantly. LED lights also last about three to four times as long.

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 Giulia Quadrifoglio doesn’t offer a rear or rear side window sunshades.

When the Panamera is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Giulia Quadrifoglio’s mirror doesn’t automatically adjust for backing.

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

The Panamera offers optional massaging front and rear seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the Giulia Quadrifoglio.

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 Giulia Quadrifoglio doesn’t offer a house-current electrical outlet.

The Porsche Panamera comes in four door hatchback and station wagon bodystyles; the Alfa Romeo Giulia Quadrifoglio isn’t available as a station wagon.