BMW M4 vs. Porsche 911

 White
VS
 Red

Key Specs

Kelley Blue Book Value

Kelley Blue Book
$68,700
$91,100 - $103,400

Expert Rating

Expert Rating

Owner Reviews

Owner Reviews
4.75 / 5
8 Reviews

Horsepower

Horsepower
425 hp
370 hp

Bluetooth

Bluetooth
Optional

BackUp Camera

BackUp Camera

Engine Type

Engine Type
3.0L 6
COMPETITION PACKAGE
Twin

Interior Features

Sun Roof

Sun Roof
Optional
Optional

Alarm

Alarm

BackUp Camera

BackUp Camera

HeadsUp Display

HeadsUp Display
Optional
Optional

Keyless Entry

Keyless Entry

Universal Garage Door Opener

Universal Garage Door Opener

Rain Sensing Wipers

Rain Sensing Wipers

Heated Mirrors

Heated Mirrors
Optional

Heated Steering Wheel

Heated Steering Wheel
Optional

Power Mirrors

Power Mirrors
Optional

Steering Wheel Controls

Steering Wheel Controls

Cruise Control

Cruise Control

Power Windows

Power Windows

Rear Defrost

Rear Defrost
Optional

Premium Sound System

Premium Sound System

Front Leg Room

Front Leg Room
42.2 in.

Front Head Room

Front Head Room
39.8 in.

Rear Leg Room

Rear Leg Room
33.7 in.

Second Head Room

Second Head Room
36.1 in.

Trunk Volume

Trunk Volume
11 cu. ft.

Bluetooth

Bluetooth
Optional

MP3 Player

MP3 Player
Optional

Climate Control

Climate Control

Navigation System

Navigation System

Exterior Features

Standard Wheels

Standard Wheels

Tire Width

Tire Width
P255/35YR19 - P265/30YR20
P235/40YR19 - P245/35YR20

Wheelbase

Wheelbase
110.7 in.
96.5 in.

Turning Radius

Turning Radius
40 ft.
36.7 ft.

Length

Length
184.5 in.
177.1 in.

Width

Width
73.6 in.
71.2 in.

Mechanical Specs

Weight

Weight
3530 - 3585 lbs.
3153 - 3351 lbs.

Horsepower

Horsepower
425 - 444 hp
370 hp

Torque

Torque
406 ft. lbs.
331 ft. lbs.

Turbocharged

Turbocharged

4wheel Disc Brakes

4wheel Disc Brakes

Limited Slip Differential

Limited Slip Differential
Optional

Performance Tires

Performance Tires
Optional
Optional

Engine Cylinders

Engine Cylinders
Straight 6 Cylinder
Flat 6 Cylinder

Drivetrain

Drivetrain
Rear Wheel Drive
Rear Wheel Drive

Fuel Capacity

Fuel Capacity
15.9 gal.
16.9 gal.

Combined

Combined
21 mpg
24 - 26 mpg

City

City
17 mpg
20 - 22 mpg

Highway

Highway
24 - 25 mpg
28 - 30 mpg

Active Suspension

Active Suspension
Optional

Manual Mode

Manual Mode
Optional
Optional

Safety Features

Spare Tire

Spare Tire

ABS Brakes

ABS Brakes

Automatic Headlights

Automatic Headlights

Tire Pressure Monitor System

Tire Pressure Monitor System

Stability Control

Stability Control

Traction Control

Traction Control

Auto Leveling Headlights

Auto Leveling Headlights

Rear Parking Sensors

Rear Parking Sensors
Optional

Automated Emergency Braking

Automated Emergency Braking

Blind Spot Monitor

Blind Spot Monitor
Optional
Optional

Driver Airbag

Driver Airbag

Passenger Airbag

Passenger Airbag

Front Side Airbag

Front Side Airbag

Front Head Airbag

Front Head Airbag

Rear Head Airbag

Rear Head Airbag

Passenger Airbag Sensor

Passenger Airbag Sensor

Knee Airbag

Knee Airbag

Tech Specs

Vehicle Name

Vehicle Name
BMW M4
Porsche 911

Body Style

Body Style
Coupe
Cabriolet - Coupe

Drivetrain

Drivetrain
Rear Wheel Drive
Rear Wheel Drive

EPA Classification

EPA Classification
Subcompact Cars
Minicompact Cars

Passenger Capacity

Passenger Capacity
4
4

Base Curb Weight

Base Curb Weight
3530 - 3585 lbs.
3153 - 3351 lbs.

Fuel Economy Est-Combined

Fuel Economy Est-Combined
20 mpg.
23 - 25 mpg.

EPA Fuel Economy Est - City

EPA Fuel Economy Est - City
17 mpg.
20 - 22 mpg.

EPA Fuel Economy Est - Hwy

EPA Fuel Economy Est - Hwy
24 - 25 mpg.
28 - 30 mpg.

Engine Order Code

Engine Order Code
_BC02_ - _BC03_
_PC03_

Engine Type

Engine Type
Twin Turbo Premium Unleaded I-6
Twin Turbo Premium Unleaded H-6

Displacement

Displacement
3.0 L/182
3.0 L/182

Fuel System

Fuel System
Gasoline Direct Injection
Gasoline Direct Injection

Trans Order Code

Trans Order Code
2MK, ZMT, _6MT02, _DCT01
250, 487, _PDK06

Trans Type

Trans Type
6 - 7
7

Trans Description Cont.

Trans Description Cont.
Auto-Shift Manual w/OD - Manual w/OD
Auto-Shift Manual w/OD - Manual w/OD

First Gear Ratio (:1)

First Gear Ratio (:1)
4.11 - 4.81
3.91

Second Gear Ratio (:1)

Second Gear Ratio (:1)
2.32 - 2.59
2.29

Third Gear Ratio (:1)

Third Gear Ratio (:1)
1.54 - 1.70
1.58

Fourth Gear Ratio (:1)

Fourth Gear Ratio (:1)
1.18 - 1.28
1.18

Fifth Gear Ratio (:1)

Fifth Gear Ratio (:1)
1.00
0.94

Sixth Gear Ratio (:1)

Sixth Gear Ratio (:1)
0.84 - 0.85
0.79

Reverse Ratio (:1)

Reverse Ratio (:1)
3.73 - 4.17
3.55

Final Drive Axle Ratio (:1)

Final Drive Axle Ratio (:1)
3.46
3.09

Cold Cranking Amps @ 0° F (Primary)

Cold Cranking Amps @ 0° F (Primary)
900
450

Tons/yr of CO2 Emissions @ 15K mi/year

Tons/yr of CO2 Emissions @ 15K mi/year
8.8 - 8.9
7.1, 7.3, 7.7

Maximum Alternator Capacity (amps)

Maximum Alternator Capacity (amps)
210
175

Suspension Type - Front

Suspension Type - Front
Strut
Strut

Suspension Type - Rear

Suspension Type - Rear
Multi-Link
Multi-Link

Suspension Type - Front (Cont.)

Suspension Type - Front (Cont.)
Strut
Strut

Suspension Type - Rear (Cont.)

Suspension Type - Rear (Cont.)
Multi-Link
Multi-Link

Front Tire Size

Front Tire Size
P255/35YR19, P255/40YR18, P265/30YR20
P235/40YR19 - P245/35YR20

Rear Tire Size

Rear Tire Size
P275/35YR19, P275/40YR18, P285/30YR20
P295/35YR19 - P305/30YR20

Front Wheel Size

Front Wheel Size
18 X 9 - 20 X 9 in.
19 X 8.5 - 20 X 9 in.

Rear Wheel Size

Rear Wheel Size
18 X 10 - 20 X 10 in.
19 X 11.5 - 20 X 11.5 in.

Front Wheel Material

Front Wheel Material
Forged Aluminum
Forged Aluminum

Rear Wheel Material

Rear Wheel Material
Forged Aluminum
Forged Aluminum

Steering Type

Steering Type
Rack-Pinion
Rack-Pinion

Turning Diameter - Curb to Curb

Turning Diameter - Curb to Curb
40 ft.
36.7 ft.

Brake Type

Brake Type
4-Wheel Disc
4-Wheel Disc

Brake ABS System

Brake ABS System
4-Wheel
4-Wheel

Disc - Front

Disc - Front
Yes
Yes

Disc - Rear

Disc - Rear
Yes
Yes

Front Brake Rotor Diam x Thickness

Front Brake Rotor Diam x Thickness
15 - 15.7 in.
13 - 16.1 in.

Rear Brake Rotor Diam x Thickness

Rear Brake Rotor Diam x Thickness
14.6 - 15 in.
13 - 15.4 in.

Fuel Tank Capacity, Approx

Fuel Tank Capacity, Approx
15.9 gal.
16.9 gal.

Front Head Room

Front Head Room
39.8 in.
96.5 in.

Front Leg Room

Front Leg Room
42.2 in.
177.1 in.

Front Shoulder Room

Front Shoulder Room
55.3 in.
71.2 in.

Second Head Room

Second Head Room
36.1 in.
50.7 - 50.9 in.

Second Leg Room

Second Leg Room
33.7 in.
60.7 in.

Second Shoulder Room

Second Shoulder Room
51.7 in.
59.8 in.

Wheelbase

Wheelbase
110.7 in.
0.62

Length, Overall

Length, Overall
184.5 in.
911

Width, Max w/o mirrors

Width, Max w/o mirrors
73.6 in.
Luxury Sport

Height, Overall

Height, Overall
54.4 in.
Convertible - Coupe

Track Width, Front

Track Width, Front
62.2 in.
3.0

Track Width, Rear

Track Width, Rear
63.1 in.
DOHC

Trunk Volume

Trunk Volume
11 ft³.
aluminum

Seventh Gear Ratio (:1)

Seventh Gear Ratio (:1)
0.67
6

Model Group

Model Group
4 Series
4