Compare 2017 BMW 4-Series vs 2017 Porsche 718

2017 BMW 4-Series
2017 Porsche 718
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430i Convertible SULEV
Style MPG City MPG Hwy Invoice MSRP
4 Series 430i Convertible SULEV 23 34 $47,280 $50,300
4 Series 430i Coupe SULEV 23 34 $39,700 $42,150
4 Series 430i Gran Coupe SULEV 23 34 $39,515 $41,950
4 Series 430i xDrive Convertible SULEV 22 32 $49,140 $52,300
4 Series 430i xDrive Coupe SULEV 23 33 $41,560 $44,150
4 Series 430i xDrive Gran Coupe SULEV 23 33 $41,375 $43,950
4 Series 440i Convertible 21 29 $53,790 $57,300
4 Series 440i Coupe 21 32 $45,605 $48,500
4 Series 440i Gran Coupe 21 32 $45,420 $48,300
4 Series 440i xDrive Convertible 20 30 $55,650 $59,300
4 Series 440i xDrive Coupe 21 31 $47,465 $50,500
4 Series 440i xDrive Gran Coupe 21 31 $47,280 $50,300
M4 Convertible 17 26 $69,970 $74,700
M4 Coupe 17 26 $62,065 $66,200
Select style
Roadster
Style MPG City MPG Hwy Invoice MSRP
718 Boxster Roadster 21 28 N/A $56,000
718 Boxster S Roadster 20 26 N/A $68,400
718 Cayman Coupe 21 28 N/A $53,900
718 Cayman S Coupe 20 26 N/A $66,300

Pricing

Invoice Price

$47,280
Coming Soon

Manufacturer Suggested Retail Price

$50,300
$56,000

Monthly Payment Estimate

$838 / month
$933 / month

The Car Connection's Take

TCC Rating

6.6
8.2

TCC’s Bottom Line

The 2017 BMW M4 is a near-perfect performance coupe that can be hugely rewarding to competent drivers. The 2017 Porsche 718 Boxster and Cayman remains some of our favorite performance cars; they're thrilling to drive, and in base form they're exceptional sports car value, too.

TCC Likes

TCC Dislikes

Fuel Economy

City

23 mpg 21 mpg

Highway

34 mpg 28 mpg

Vehicle

EPA Classification

Subcompact Cars Two Seaters

Interior Dimensions

Front Shoulder Room (in)

55.3 -

Second Leg Room (in)

33.1 -

Passenger Capacity

4 2

Front Leg Room (in)

42.2 -

Second Head Room (in)

37.1 -

Second Shoulder Room (in)

49.8 -

Front Head Room (in)

40.4 -

Exterior Dimensions

Length, Overall (in)

182.6 172.4

Height, Overall (in)

54.5 50.4

Track Width, Rear (in)

62.8 60.3

Wheelbase (in)

110.6 97.4

Width, Max w/o mirrors (in)

71.9 70.9

Track Width, Front (in)

60.8 59.6

Cargo Area Dimensions

Trunk Volume (ft³)

7.8 9.7

Brakes

Front Brake Rotor Diam x Thickness (in)

13 13

Drum - Rear (Yes or )

NA NA

Brake ABS System

4-Wheel 4-Wheel

Disc - Rear (Yes or )

Yes Yes

Rear Brake Rotor Diam x Thickness (in)

11.8 11.8

Brake Type

4-Wheel Disc 4-Wheel Disc

Rear Drum Diam x Width (in)

NA NA

Disc - Front (Yes or )

Yes Yes

Fuel Tank

Fuel Tank Capacity, Approx (gal)

15.8 14.3

Steering

Turning Diameter - Curb to Curb (ft)

37.1 36

Steering Type

Rack-Pinion Rack-Pinion

Tires

Front Tire Size

P225/45VR18 P235/45ZR18

Spare Tire Size

NA NA

Front Tire Order Code

NA NA

Spare Tire Order Code

NA NA

Rear Tire Size

P225/45VR18 P265/45ZR18

Rear Tire Order Code

NA NA

Weight Information

Base Curb Weight (lbs)

3995 2944

Wheels

Spare Wheel Size (in)

NA NA

Rear Wheel Material

Aluminum Aluminum

Rear Wheel Size (in)

18 X 8 18 X 9.5

Front Wheel Material

Aluminum Aluminum

Spare Wheel Material

NA NA

Front Wheel Size (in)

18 X 8 18 X 8

Electrical

Cold Cranking Amps @ 0° F (Primary)

900 -

Maximum Alternator Capacity (amps)

170 -

Engine

Engine Type

Intercooled Turbo Premium Unleaded I-4 Intercooled Turbo Premium Unleaded H-4

Fuel System

Gasoline Direct Injection Gasoline Direct Injection

SAE Net Torque @ RPM

258 @ 1450 280 @ 1950

Engine Order Code

NA NA

Displacement

2.0 L/122 2.0 L/121

SAE Net Horsepower @ RPM

248 @ 5200 300 @ 6500

Mileage

EPA Fuel Economy Est - City (MPG)

23 21

Fuel Economy Est-Combined (MPG)

27 24

EPA Fuel Economy Est - Hwy (MPG)

34 28

Transmission

Second Gear Ratio (:1)

3.14 1.95

Trans Order Code

2TB 480

Fourth Gear Ratio (:1)

1.67 1.13

Trans Description Cont.

Automatic w/OD Manual w/OD

Eighth Gear Ratio (:1)

0.67 -

Drivetrain

Rear Wheel Drive Rear Wheel Drive

Sixth Gear Ratio (:1)

1.00 0.81

First Gear Ratio (:1)

4.71 3.31

Final Drive Axle Ratio (:1)

3.15 3.89

Third Gear Ratio (:1)

2.11 1.41

Trans Type

8 6

Seventh Gear Ratio (:1)

0.84 NA

Fifth Gear Ratio (:1)

1.28 0.95

Trans Description Cont. Again

NA NA

Reverse Ratio (:1)

3.29 3.00

Summary

Vehicle Name

BMW 4 Series Porsche 718 Boxster

Body Style

Convertible Convertible

Suspension

Suspension Type - Front (Cont.)

Strut Strut

Suspension Type - Rear

Multi-Link Strut

Suspension Type - Rear (Cont.)

Multi-Link Strut

Suspension Type - Front

Strut Strut

Emissions

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

6.6 7.3

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