2025 Porsche 911 vs 2026 BMW M5

$120,100 · Coupe

$121,900 · Sedan

Comparison Overview

Deciding between the ultimate daily driver performance sedan and the quintessential sports coupe often comes down to priorities: usable space versus raw thrills. If your budget hovers around $120,000—the Porsche 911 starts at $120,100 while the BMW M5 sits at $121,900—the choice hinges on practicality versus extreme power. The M5 crushes the 911 in output, boasting 717 hp and a massive 738 lb-ft of torque compared to the 911's 388 hp. However, the 911 offers better efficiency, achieving a combined 21 MPG versus the M5's 14 MPG (before considering the M5's 29 miles of electric range). The M5 is significantly larger at 200.6 inches long and provides 16.5 cu ft of cargo space, dwarfing the 911’s tiny 4.8 cu ft trunk, making the comparison between a spacious plug-in hybrid sedan and a focused RWD coupe.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 BMW M5

The 2026 BMW M5 is the superior commuter due to its sedan body style, superior cargo capacity of 16.5 cu ft, and the benefit of 29 miles of electric-only driving.

👨‍👩‍👧‍👦 Best for Families

2026 BMW M5

The M5 wins easily as a sedan with significantly more length (200.6 inches) and over three times the cargo capacity compared to the tight 4.8 cu ft in the 911 coupe.

🏎️ Best for Enthusiasts

2026 BMW M5

Despite the 911's pedigree, the M5's raw output of 717 hp and 738 lb-ft of torque provides significantly more on-paper performance capability.

💰 Best Value

2025 Porsche 911

The 911 provides better long-term running costs due to its superior combined MPG of 21 versus the M5's 14 MPG, saving money on premium fuel.

Choose the Porsche 911 if...

You prioritize fuel efficiency, achieving 21 MPG combined compared to the M5's 14 MPG.
You prefer the classic, compact sports coupe dimensions, measuring only 178.8 inches in length.
You want the traditional sports car feel from a rear-wheel-drive platform, even with less power (388 hp).

Choose the BMW M5 if...

You need massive power, as the M5 delivers 717 hp and 738 lb-ft of torque.
You require usable space, benefiting from the sedan’s 16.5 cu ft cargo capacity and larger overall footprint.
You want plug-in hybrid flexibility, offering 29 miles of all-electric driving range for local trips.

Key Dimensions

Dimension	Porsche 911	BMW M5
Length	178.8"	200.6"
Width	72.9"	77.6"
Height	51.2"	59.4"
Wheelbase	96.5"	118.3"

Features Comparison

Safety

Feature	Porsche	BMW
Lane Keeping Assist System	✓	✓
Driver Attention Alert	✓	✓
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
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	✓	✓
Front Headrests	2	2
Front Integrated Headrests	✓	—
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	—
Blind Spot Monitor	—	✓
Lane Departure Warning	—	✓
Rear Cross Traffic Alert	—	✓
Rear Head Airbags	—	✓
Rear Door Child Safety Locks	—	✓
Brake Drying	—	✓
Self-Leveling Headlights	—	✓
Cornering Lights	—	✓
Integrated Turn Signal Mirrors	—	✓
Front Power Adjustable Headrests	—	✓
Rear Headrests	—	3
Rear Height Adjustable Headrests	—	✓
Rear Center 3-Point Seatbelt	—	✓

Engine

Feature	Porsche	BMW
Base Engine Displacement	3.0 L	4.4 L
Number of Cylinders	flat 6	V8
Base Engine Type	gas	plug-in hybrid
Horsepower	388 hp @ 6500 rpm	717 hp @ 5600 rpm
Torque	332 lb-ft @ 2000 rpm	738 lb-ft @ 1800 rpm
Number of Valves	24	32
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	Porsche	BMW
Transmission Type	8-speed automated manual	8-speed shiftable automatic
Drivetrain Type	rear wheel drive	all wheel drive
Rear Differential Type	Limited Slip	—
[object Object]	—	✓
[object Object]	—	✓

Fuel

Feature	Porsche	BMW
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	18/25 MPG	12/19 MPG
EPA Fuel Economy (Combined)	21 MPG	14 MPG
EPA Driving Range (City/Highway)	298.8/415.0 mi.	190.8/302.1 mi.
Fuel Tank Capacity	16.6 gal.	15.9 gal.
EPA Efficiency (City/Highway MPGe)	—	41/57 MPGe
EPA Efficiency (Combined MPGe)	—	47 MPGe
EPA Electric Driving Range	—	29 mi.
EPA Energy Consumption (kWh/100 mi)	—	55
Charging Time (240V)	—	2.0 hr.
DC Fast Charging Port Type	—	SAE J1772

Comfort & Convenience

Feature	Porsche	BMW
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	✓	✓
Cruise Control	✓	✓
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Front Door Pockets	✓	✓
Leather Steering Wheel	✓	✓
Heated Steering Wheel	✓	✓
Dual Zone Climate Control	✓	—
Interior Air Filtration	✓	✓
Extended Cabin Heating	✓	—
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Power Tilt and Telescopic Steering Wheel	—	✓
Rear Cupholders	—	✓
Rear Door Pockets	—	✓
Four Zone Climate Control	—	✓
Rear Ventilation Ducts	—	✓
Extended Cabin Heating/Cooling	—	✓
Turn Signal Indicators in Mirrors	—	✓

In Car Entertainment

Feature	Porsche	BMW
AM/FM Stereo	✓	✓
Stereo Power	150W	655W
Speaker System	8	18
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	3 months	12 months
Infotainment Display	—	14.9 in
Premium Speaker Brand	—	Bowers & Wilkins
Surround Audio	—	Discrete

Power Feature

Feature	Porsche	BMW
One-Touch Power Windows	2	4
Keyless Entry	✓	✓
Heated Mirrors	✓	✓
Moonroof Type	—	1st Row Fixed Glass Extended
Reverse Tilt Passenger Mirror	—	✓

Frontseats

Feature	Porsche	BMW
Seat Material: Leatherette	✓	—
Front Seat Type: Sport	✓	✓
Driver Seat Power Adjustments	6-way	12-way
Driver Seat Manual Adjustments	2-way	—
Driver Seat Height Adjustment	✓	✓
Passenger Seat Power Adjustments	6-way	12-way
Passenger Seat Manual Adjustments	2-way	—
Passenger Seat Height Adjustment	✓	✓
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Front Head Room	—	39.0 in.
Front Leg Room	—	41.3 in.
Front Shoulder Room	—	59.2 in.
Seat Material: Premium Leather	—	✓
Driver Seat Lumbar Support	—	Power
Driver Seat Thigh Extension	—	✓
Driver Seat Memory Settings	—	2
Passenger Seat Lumbar Support	—	Power
Passenger Seat Thigh Extension	—	✓

Rearseats

Feature	Porsche	BMW
Rear Head Room	—	37.5 in.
Rear Leg Room	—	36.2 in.
Rear Shoulder Room	—	56.9 in.
Split-Folding Rear Seatback	—	✓
Folding Center Armrest	—	✓

Tires and Wheels

Feature	Porsche	BMW
Wheel Finish	Painted Alloy	Painted Alloy
Wheel Size	20 x 11.5 in.	21 x 11.0 in.
Tire Type	Performance	Performance
Tire Size	295/35R20	295/35R21

Suspension

Feature	Porsche	BMW
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	—
Rear Stabilizer Bar	✓	—

Warranty

Feature	Porsche	BMW
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.	12 yr./ unlimited mi.
Roadside Assistance	4 yr./ 50000 mi.	4 yr./ unlimited mi.
Hybrid Component Warranty	—	8 yr./ 100000 mi.
Complimentary Scheduled Maintenance	—	3 yr./ 36000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Porsche 911 and 2026 BMW M5.

How much more powerful is the BMW M5 than the Porsche 911 in this comparison?

The 2026 BMW M5 is significantly more potent, generating 717 hp and 738 lb-ft of torque, which is a 329 hp advantage over the 2025 Porsche 911's 388 hp.

Which car offers better economy for daily driving?

The 2025 Porsche 911 is the clear winner for economy, achieving a combined 21 MPG compared to the M5's 14 MPG, translating to fewer stops for premium fuel.

Does the BMW M5 offer any electric-only capability?

Yes, the 2026 M5 is equipped with a plug-in hybrid system, allowing it to travel 29 miles solely on electric power before engaging the gasoline engine.

Which vehicle is easier to park due to its size?

The Porsche 911 is much smaller and more agile, measuring 178.8 inches long and 51.2 inches high, compared to the larger M5 sedan at 200.6 inches long.