2025 Porsche Panamera vs 2026 Mercedes-Benz S-Class

$102,800 · Sedan

$119,500 · Sedan

Comparison Overview

The most significant numerical divergence between the 2025 Porsche Panamera and the 2026 Mercedes-Benz S-Class is the $16,700 MSRP difference, with the Panamera starting at $102,800 compared to the S-Class's $119,500. This price gap reflects a substantial performance disparity, as the S-Class delivers 442 hp and 413 lb-ft of torque, overpowering the Panamera's 348 hp and 368 lb-ft of torque. Conversely, the Panamera holds an advantage in efficiency, achieving a 21 MPG combined rating against the S-Class's 23 MPG combined rating. Size metrics also differ notably, with the S-Class being 10.6 inches longer at 209.5 inches and significantly taller at 59.2 inches. In terms of utility, the Panamera offers 17.4 cu ft of cargo space versus the S-Class's 12.8 cu ft, despite the S-Class's larger exterior footprint.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Porsche Panamera

The Panamera is slightly more efficient with a 21 MPG combined rating and offers superior cargo capacity at 17.4 cu ft for daily usability.

👨‍👩‍👧‍👦 Best for Families

2026 Mercedes-Benz S-Class

The S-Class is substantially larger in overall length (209.5 inches) and height (59.2 inches), suggesting a potentially roomier cabin despite its smaller stated cargo volume.

🏎️ Best for Enthusiasts

2026 Mercedes-Benz S-Class

The Mercedes-Benz S-Class offers superior output with 442 hp and includes All-Wheel Drive, contrasting with the Panamera's 348 hp and RWD configuration.

💰 Best Value

2025 Porsche Panamera

The Panamera provides performance and efficiency metrics for $16,700 less than the S-Class, presenting a better baseline price-to-performance ratio.

Choose the Porsche Panamera if...

Your priority is a lower initial outlay, beginning at $102,800 versus $119,500 for the S-Class.
You prefer a RWD layout paired with an 8-speed automated manual transmission.
Maximum trunk space is critical, as the Panamera offers 17.4 cu ft compared to the S-Class's 12.8 cu ft.

Choose the Mercedes-Benz S-Class if...

Maximum engine output is desired, as the S-Class achieves 442 hp against the Panamera's 348 hp.
All-Wheel Drive capability for variable conditions is a mandatory requirement.
You prioritize maximum interior volume, indicated by the S-Class's greater length (209.5 inches) and height (59.2 inches).

Key Dimensions

Dimension	Porsche Panamera	Mercedes-Benz S-Class
Length	198.9"	209.5"
Width	76.3"	75.6"
Height	56.0"	59.2"
Wheelbase	116.1"	126.6"

Features Comparison

Safety

Feature	Porsche	Mercedes-Benz
Lane Departure Warning	✓	✓
Lane Keeping Assist System	✓	✓
Driver Attention Alert	✓	✓
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Dual Rear Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Brake Preparation System	✓	✓
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Daytime Running Lights	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Integrated Headrests	✓	—
Rear Headrests	2	3
Rear Integrated Headrests	✓	—
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Blind Spot Monitor	—	✓
Front Cross Traffic Alert	—	✓
Rear Cross Traffic Alert	—	✓
Brake Drying	—	✓
Adaptive Headlights	—	✓
Self-Leveling Headlights	—	✓
Cornering Lights	—	✓
Front Power Adjustable Headrests	—	✓
Rear Multi-Adjustable Headrests	—	✓
Rear Center 3-Point Seatbelt	—	✓

Engine

Feature	Porsche	Mercedes-Benz
Base Engine Displacement	2.9 L	3.0 L
Number of Cylinders	V6	inline 6
Base Engine Type	gas	mild hybrid
Horsepower	348 hp @ 5400 rpm	442 hp
Torque	368 lb-ft @ 1900 rpm	413 lb-ft
Number of Valves	24	24
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	Porsche	Mercedes-Benz
Transmission Type	8-speed automated manual	9-speed shiftable automatic
Drivetrain Type	rear wheel drive	all wheel drive
Center Differential Type	—	Limited Slip

Fuel

Feature	Porsche	Mercedes-Benz
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	18/25 MPG	20/29 MPG
EPA Fuel Economy (Combined)	21 MPG	23 MPG
EPA Driving Range (City/Highway)	426.6/592.5 mi.	400.0/580.0 mi.
Fuel Tank Capacity	23.7 gal.	20.0 gal.

Comfort & Convenience

Feature	Porsche	Mercedes-Benz
Push Button Start	✓	✓
Tilt and Telescopic Steering Wheel	✓	—
Transmission Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	✓
Wireless Charging Pad	✓	✓
Adaptive Cruise Control	✓	✓
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Heated Steering Wheel	✓	—
Dual Zone Climate Control	✓	✓
Rear Ventilation Ducts	✓	✓
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Power Tilt and Telescopic Steering Wheel	—	✓
Front View Camera	—	✓
Side View Camera	—	✓
Automatic Parking Assist	—	✓
Overhead Console with Storage	—	✓
Wood Trim on Steering Wheel	—	✓
Extended Cabin Heating/Cooling	—	✓
Sun Sensor	—	✓

In Car Entertainment

Feature	Porsche	Mercedes-Benz
AM/FM Stereo	✓	✓
Stereo Power	150W	710W
Speaker System	10	15
Android Auto (Wired)	✓	—
Apple CarPlay (Wired)	✓	—
USB Port	✓	✓
Auxiliary Audio Input	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	3 months	6 months
Infotainment Display	—	12.8 in
Premium Speaker Brand	—	Burmester
Subwoofer Count	—	2
Surround Audio	—	Discrete
Android Auto (Wireless)	—	✓
Apple CarPlay (Wireless)	—	✓
Speed Sensitive Volume Control	—	✓

Power Feature

Feature	Porsche	Mercedes-Benz
One-Touch Power Windows	4	4
Moonroof Type	1st Row Power Glass Extended	1st Row Power Glass Extended
Keyless Entry	✓	✓
Heated Mirrors	✓	✓
Reverse Tilt Passenger Mirror	—	✓

Frontseats

Feature	Porsche	Mercedes-Benz
Seat Material: Leatherette	✓	—
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	10-way	12-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Thigh Extension	✓	✓
Driver Seat Memory Settings	3	3
Passenger Seat Power Adjustments	10-way	12-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Passenger Seat Thigh Extension	✓	✓
Passenger Seat Memory Settings	3	3
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Front Head Room	—	42.1 in.
Front Leg Room	—	41.4 in.
Front Shoulder Room	—	59.6 in.
Seat Material: Leather	—	✓
Driver Seat Ventilation	—	✓
Passenger Seat Ventilation	—	✓
Seat Massage Function	—	✓

Rearseats

Feature	Porsche	Mercedes-Benz
Split-Folding Rear Seatback	✓	—
Folding Center Armrest	✓	✓
Rear Head Room	—	39.4 in.
Rear Leg Room	—	43.8 in.
Rear Shoulder Room	—	59.0 in.

Tires and Wheels

Feature	Porsche	Mercedes-Benz
Wheel Material	Alloy	Alloy
Wheel Size	19 x 10.5 in	19 x 8.5 in
Tire Type	Performance	—
Tire Size	295/40R19	255/45R19
Run Flat Tires	—	✓

Suspension

Feature	Porsche	Mercedes-Benz
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	✓
Rear Stabilizer Bar	✓	✓

Warranty

Feature	Porsche	Mercedes-Benz
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	4 yr./ 50000 mi.
Roadside Assistance	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Hybrid Component Warranty	—	6 yr./ 62000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Porsche Panamera and 2026 Mercedes-Benz S-Class.

How much power does the S-Class gain over the Panamera?

The 2026 Mercedes-Benz S-Class generates 442 hp, which is a 94 hp advantage over the 2025 Porsche Panamera's 348 hp. This results in significantly greater straight-line performance metrics for the S-Class.

Which sedan is better for highway cruising based on fuel economy?

The Mercedes-Benz S-Class has a slight edge in highway efficiency, posting 29 MPG on the highway compared to the Panamera's 25 MPG. However, the Panamera achieves a slightly better overall combined rating of 21 MPG versus the S-Class's 23 MPG.

What is the physical size difference between these two sedans?

The S-Class is substantially larger externally, measuring 209.5 inches in length compared to the Panamera's 198.9 inches. The S-Class is also notably taller at 59.2 inches versus the Panamera's 56.0 inches.

Do both vehicles require premium fuel?

Yes, both the 2025 Porsche Panamera and the 2026 Mercedes-Benz S-Class explicitly require premium unleaded fuel for operation.

How do the drivetrains compare?

The Panamera utilizes Rear Wheel Drive paired with an 8-speed automated manual transmission. In contrast, the S-Class comes standard with All Wheel Drive and utilizes a 9-speed shiftable automatic transmission.

How does the price difference affect the value proposition?

The Panamera is priced $16,700 lower at $102,800, offering a compelling value proposition if the owner is willing to accept 94 fewer horsepower. The S-Class demands a higher premium for its superior performance figures and AWD system.