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BMW M5 vs. Porsche 911

When we compare the BMW M5 to the Porsche 911, the BMW M5 has the advantage in the areas of new vehicle base pricing, typical lower range of pricing for one- to five-year-old used cars, interior volume and base engine power. The Porsche 911 has the advantage in the areas of fuel efficiency and overall quality score. Based on this comparison of the BMW M5 versus the Porsche 911, the BMW M5 is a better car than the Porsche 911.

BMW M5 versus Porsche 911 Pricing

A used 2023 BMW M5 ranges from $112,365 to $138,521 while a used 2023 Porsche 911 is priced between $130,652 to $306,526. For a new model, the BMW M5's price is between $114,615 and $138,112, with the Porsche 911 priced between $124,247 and $283,371.

BMW M5 versus Porsche 911 Quality Rating

The iSeeCars Overall Quality rating for the BMW M5 is 7.9 out of 10 while the Porsche 911's quality rating is 8.7 out of 10. This results in the BMW M5 being ranked 11 out of 29 Best Luxury Midsize Cars and the Porsche 911 being ranked 1 out of 40 Best Luxury Sports Cars.

Engine Power and Fuel Efficiency Comparison

For engine performance, the BMW M5’s base engine makes 600 horsepower, and the Porsche 911 base engine makes 379 horsepower. The M5 is rated to deliver an average of 17 miles per gallon, with a highway range of 422 miles. The 911 is rated to deliver an average of 20 miles per gallon, with a highway range of 406 miles. Both models use premium unleaded.

Passenger Space Comparison

The BMW M5, a midsize car, has the advantage of offering more interior volume, reflected in more trunk space.

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Pricing

New Asking Price:

$114,615 - $138,112

Used Asking Price:

$112,365 - $138,521

5-Year Depreciation (lower is better):

54.2%

Pricing

New Asking Price:

$124,247 - $283,371

Used Asking Price:

$130,652 - $306,526

5-Year Depreciation (lower is better):

15.2%

iSeeCars Scores & Rankings

Overall Score:

7.9 / 10

Reliability:

8.4 / 10

Retained Value:

7.4 / 10

Safety:

Not available

iSeeCars Scores & Rankings

Overall Score:

8.7 / 10

Reliability:

8.4 / 10

Retained Value:

9.1 / 10

Safety:

Not available

iSeeCars Rankings

Most Reliable Luxury Midsize Cars

7 / 29
11 / 29

Luxury Midsize Cars with Best Resale Value

15 / 29

iSeeCars Rankings

1 / 40

Luxury Sports Cars with Best Resale Value

1 / 40

Most Reliable Luxury Sports Cars

9 / 40

Summary Review

Not yet available

Summary Review

Not yet available

Pros and Cons

Not yet available

Pros and Cons

Not yet available

Available Body Styles

Sedan

Available Body Styles

Convertible

Available Drivetrain Options

Gasoline

Available Drivetrain Options

Gasoline

Trim Levels

Base

Trim Levels

Carrera, Carrera 4, Carrera 4 GTS, Carrera 4S, Carrera GTS, Carrera S, Targa 4, Targa 4 GTS, Targa 4S, Targa 50 Years Porsche Design, Turbo, Turbo S

Warranty Information

Warranty, Bumper-to-Bumper:

4 years / 50000 miles

Warranty, Powertrain

4 years / 50000 miles

Warranty, Roadside Assistance:

4 years

Warranty Information

Warranty, Bumper-to-Bumper:

4 years / 50000 miles

Warranty, Powertrain

4 years / 50000 miles

Warranty, Roadside Assistance:

4 years / 50000 miles

Safety Ratings

NHTSA Safety Rating (last 5 year average):

Not yet available

IIHS Safety Rating:

Not yet available

Safety Ratings

NHTSA Safety Rating (last 5 year average):

Not yet available

IIHS Safety Rating:

Not yet available

Base Drivetrain Specifications

Horsepower:

600 hp @ 6000 rpm

Torque:

553 foot-lbs @ 1800 rpm

Power-to-Weight Ratio (higher is better):

0.138 hp per pound

Base Drivetrain Specifications

Horsepower:

379 hp @ 6500 rpm

Torque:

331 foot-lbs @ 1950 rpm

Power-to-Weight Ratio (higher is better):

0.113 hp per pound

Engine Specifications

Engine Size:

4.4 liters

Engine Configuration:

V

Number of Cylinders:

8

Transmission:

Automatic

Standard/Optional Drivetrain Type:

AWD

EPA Fuel Economy (City/Highway/Combined MPG):

15 / 21 / 17

Range (city/hwy):

302 / 422 miles

Recommended Fuel Type:

Premium Unleaded

Engine Specifications

Engine Size:

3 liters

Engine Configuration:

Flat/Horizontally Opposed

Number of Cylinders:

6

Transmission:

Automatic

Standard/Optional Drivetrain Type:

RWD / AWD

EPA Fuel Economy (City/Highway/Combined MPG):

18 / 24 / 20

Range (city/hwy):

304 / 406 miles

Recommended Fuel Type:

Premium Unleaded

Standard/Optional Features

Apple CarPlay:

Standard

Android Auto:

Standard

Wireless Smartphone Charging:

Standard

Keyless Entry:

Standard

Keyless Ignition:

Standard

Adaptive Cruise Control:

Available

Heated Seats:

Standard

Cooled/Ventilated Seats:

Available

Leather Upholstery:

Standard

Navigation System:

Standard

Sunroof/Moonroof:

Available

Heated Steering Wheel:

Standard

Standard/Optional Features

Apple CarPlay:

Standard

Android Auto:

Standard

Wireless Smartphone Charging:

N/A

Keyless Entry:

Standard

Keyless Ignition:

Standard

Adaptive Cruise Control:

Available

Heated Seats:

Standard

Cooled/Ventilated Seats:

Available

Leather Upholstery:

Standard

Navigation System:

Standard

Sunroof/Moonroof:

Available

Heated Steering Wheel:

Available

Safety Equipment

Forward Collision Warning:

Standard

Pedestrian Detection:

Standard

Lane Departure Warning:

Standard

Lane Keeping Assist:

N/A

Blind Spot Monitoring:

Standard

Rear Cross-Traffic Alert:

Standard

360-Degree Camera:

N/A

Rear Seat Reminder:

N/A

Driver Attention Monitoring:

Standard

Safety Equipment

Forward Collision Warning:

Standard

Pedestrian Detection:

Standard

Lane Departure Warning:

N/A

Lane Keeping Assist:

N/A

Blind Spot Monitoring:

N/A

Rear Cross-Traffic Alert:

N/A

360-Degree Camera:

N/A

Rear Seat Reminder:

N/A

Driver Attention Monitoring:

N/A

Interior Dimensions

Front Head Room:

40.7 inches

Front Leg Room:

41.4 inches

Front Shoulder Room:

58.7 inches

Rear Head Room:

38.5 inches

Rear Leg Room:

36.5 inches

Rear Shoulder Room:

55.9 inches

Cargo Space:

14 cubic feet

Overall Interior Volume:

103.0 cubic feet

Interior Dimensions

Front Head Room:

Not yet available

Front Leg Room:

Not yet available

Front Shoulder Room:

Not yet available

Rear Head Room:

Not yet available

Rear Leg Room:

Not yet available

Rear Shoulder Room:

Not yet available

Cargo Space:

4.6 cubic feet

Overall Interior Volume:

70.0 cubic feet

Exterior Dimensions

Curb Weight:

4345 lbs

Width:

83.7 inches

Height:

58 inches

Length:

196.4 inches

Wheelbase:

117.4 inches

Ground Clearance:

5.2 inches

Exterior Dimensions

Curb Weight:

3354 lbs

Width:

79.7 inches

Height:

51.1 inches

Length:

177.9 inches

Wheelbase:

96.5 inches

Ground Clearance:

4.7 inches

Standard Wheel/Tire Information

Wheel Size:

19.0 x 9.5 inches

Wheel Type:

painted alloy

Tire Size:

275/40R19

Standard Wheel/Tire Information

Wheel Size:

19.0 x 8.5 inches

Wheel Type:

alloy

Tire Size:

235/40ZR19