2015 BMW Z4 vs 2015 Porsche Boxster

2015 BMW Z4

2015 Porsche Boxster

Select style

2-Door Roadster sDrive28i

Style	MPG City	MPG Hwy	Invoice	MSRP
Z4 2-Door Roadster sDrive28i	22	34	$45,535	$48,950
Z4 2-Door Roadster sDrive35i	17	24	$52,895	$56,950
Z4 2-Door Roadster sDrive35is	17	24	$61,035	$65,800

Select style

2-Door Roadster

Style	MPG City	MPG Hwy	Invoice	MSRP
Boxster 2-Door Roadster	20	30	N/A	$51,400
Boxster 2-Door Roadster GTS	19	26	N/A	$73,500
Boxster 2-Door Roadster S	20	28	N/A	$63,300

Show Only Differences

Pricing

Invoice Price

$45,535

N/A

Manufacturer Suggested Retail Price

$48,950

$51,400

Monthly Payment Estimate

$816 / month

$857 / month

The Car Connection's Take

TCC Rating

7.8

Read Our Full Review

9.0

Read Our Full Review

TCC’s Bottom Line

The 2015 BMW Z4 is on the pricier side of the roadster segment, but it offers a nice blend of comfort, sport, and technology.

The 2015 Porsche Boxster is a relative performance bargain, combining everyday usability with a balanced chassis and sweet engines.

TCC Likes

Strong, efficient base turbo four (28i)
Tight, quiet retractable hardtop
Good ride-and-handling balance

Sharp, confident handling
Attractive, modern styling
Brisk acceleration

TCC Dislikes

Steering lacks feedback
Not much space
Somewhat cluttered dash

Adding options brings the bottom line into 911 territory
Wind and engine noise at high speeds
Sound controls can be fiddly

Fuel Economy

City

22 mpg

20 mpg

Highway

34 mpg

30 mpg

Vehicle

EPA Classification

Two-Seaters

Interior Dimensions

Front Leg Room (in)

42.2

42.6

Front Head Room (in)

39.1

38.6

Passenger Capacity

Front Shoulder Room (in)

53.3

51.7

Front Hip Room (in)

53.4

Exterior Dimensions

Height, Overall (in)

50.8

50.5

Track Width, Rear (in)

61.4

60.5

Wheelbase (in)

98.3

97.4

Width, Max w/o mirrors (in)

70.5

70.9

Track Width, Front (in)

59.5

60.1

Length, Overall (in)

166.9

172.2

Min Ground Clearance (in)

4.3

Cargo Area Dimensions

Trunk Volume (ft³)

9.9

Brakes

Disc - Rear (Yes or )

Yes

Rear Brake Rotor Diam x Thickness (in)

11.8

Brake Type

4-Wheel Disc

Rear Drum Diam x Width (in)

Disc - Front (Yes or )

Yes

Front Brake Rotor Diam x Thickness (in)

12.4

Drum - Rear (Yes or )

Brake ABS System

4-Wheel

Fuel Tank

Fuel Tank Capacity, Approx (gal)

14.5

16.9

Steering

Steering Type

Rack-Pinion

Turning Diameter - Curb to Curb (ft)

35.1

36.4

Tires

Spare Tire Order Code

Rear Tire Size

P225/45VR17

P265/45ZR18

Rear Tire Order Code

Front Tire Size

P225/45VR17

P235/45ZR18

Spare Tire Size

Front Tire Order Code

Weight Information

Base Curb Weight (lbs)

3263

2888

Wheels

Rear Wheel Size (in)

17 X 8

18 X 9

Front Wheel Material

Aluminum

Spare Wheel Material

Front Wheel Size (in)

17 X 8

18 X 8

Spare Wheel Size (in)

Rear Wheel Material

Aluminum

Electrical

Maximum Alternator Capacity (amps)

170

120

Cold Cranking Amps @ 0° F (Primary)

340

Engine

SAE Net Horsepower @ RPM

240 @ 5000

265 @ 6700

Engine Type

Intercooled Turbo Premium Unleaded I-4

Premium Unleaded H-6

Fuel System

Gasoline Direct Injection

SAE Net Torque @ RPM

260 @ 1450

206 @ 4400

Engine Order Code

Displacement

2.0 L/122

2.7 L/165

Mileage

EPA Fuel Economy Est - Hwy (MPG)

EPA Fuel Economy Est - City (MPG)

Fuel Economy Est-Combined (MPG)

Transmission

Trans Description Cont. Again

Reverse Ratio (:1)

3.35

3.33

Second Gear Ratio (:1)

2.06

2.05

Trans Order Code

ZMT

Fourth Gear Ratio (:1)

1.00

1.13

Trans Description Cont.

Manual w/OD

Seventh Gear Ratio (:1)

Drivetrain

Rear Wheel Drive

Sixth Gear Ratio (:1)

0.68

0.84

First Gear Ratio (:1)

3.68

3.67

Final Drive Axle Ratio (:1)

3.08

3.89

Third Gear Ratio (:1)

1.31

1.46

Trans Type

Fifth Gear Ratio (:1)

0.81

0.97

Summary

Vehicle Name

BMW Z4

Porsche Boxster

Body Style

Roadster

Convertible

Suspension

Suspension Type - Rear

Multi-Link

Strut

Suspension Type - Rear (Cont.)

Multi-Link

Strut

Suspension Type - Front

Strut

Suspension Type - Front (Cont.)

Strut

Emissions

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

6.8

7.4

Get FREE Dealer Quotes

From dealers near you

Go!

Compare 2015 BMW Z4 vs 2015 Porsche Boxster

Get FREE Dealer Quotes

Add a Vehicle to Compare