Compare the2025 Cadillac CT5-VVS 2025 Porsche Panamera

In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the CT5-V are reminded to check the back seat if they opened the rear door before starting out. The Panamera doesn’t offer a back seat reminder.

Both the CT5-V and the Panamera 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, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, available all wheel drive and driver alert monitors.

Cadillac’s powertrain warranty covers the CT5-V 2 years and 20,000 miles longer than Porsche covers the Panamera. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the Panamera ends after only 4 years or 50,000 miles.

There are almost 3 times as many Cadillac dealers as there are Porsche dealers, which makes it much easier should you ever need service under the CT5-V’s warranty.

As tested in Motor Trend the CT5-V Blackwing 6.2 supercharged V8 is faster than the Porsche Panamera turbo V6 (automatics tested):

On the EPA test cycle the CT5-V 3.0 turbo V6 Auto RWD gets better fuel mileage than the Panamera 2.9 turbo V6 RWD running its gasoline engine (18 city/27 hwy vs. 18 city/25 hwy).

The CT5-V has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The Panamera doesn’t offer a cap-less fueling system.

A 10-speed automatic is standard on the Cadillac CT5-V, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the Panamera.

The CT5-V stops shorter than the Panamera:

The CT5-V’s standard tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the Panamera’s standard 45 series front tires.

The CT5-V has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The Panamera doesn’t offer vehicle monitored tire inflation.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the CT5-V can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Panamera doesn’t offer run-flat tires.

The CT5-V Blackwing handles at 1.13 G’s, while the Panamera pulls only .98 G’s of cornering force in a Motor Trend skidpad test.

The CT5-V Blackwing executes Motor Trend’s “Figure Eight” maneuver 2.4 seconds quicker than the Panamera (22.6 seconds @ .95 average G’s vs. 25 seconds @ .79 average G’s).

The Cadillac CT5-V may be more efficient, handle and accelerate better because it weighs about 250 to 1000 pounds less than the Porsche Panamera.

The CT5-V is 5.1 inches shorter than the Panamera, making the CT5-V easier to handle, maneuver and park in tight spaces.

The CT5-V (except Manual) has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The Panamera doesn’t offer a remote starting system.

On a hot day the CT5-V’s driver can lower all the windows from a distance using the keyless remote. The driver of the Panamera can only operate the windows from inside the vehicle, with the ignition on.

The CT5-V’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The Panamera’s cruise control switches are unlit, making them difficult to find at night and operate safely.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the CT5-V has standard extendable sun visors. The Panamera doesn’t offer extendable visors.

Consumer Reports® recommends the Cadillac CT5-V, based on reliability, safety and performance.

The CT5-V Blackwing was chosen as a Car and Driver’s “Top Ten” for 2025 and 3 more times in the last 4 years. The Panamera has never been chosen by Car and Driver in their “10Best” issue.

The Cadillac CT5 outsold the Porsche Panamera by almost four to one during 2024.