Your car comparison

Here's how the 2015 Porsche Boxster, 2006 BMW Z4 M, 2020 BMW Z4 and the 2016 Porsche Cayman measure up.
2dr Roadster
$51,400
Starting MSRP
M 2dr Coupe
$49,300
Starting MSRP
sDrive30i Roadster
$49,700
Starting MSRP
$52,600
Starting MSRP

Overview

Door
2-door 2-door 2-door 2-door
Seats
2 2 2 2
Engine

265.0-hp, 2.7-liter, Flat 6 Cylinder Engine(Gasoline Fuel)

330.0-hp, 3.2-liter, Straight 6 Cylinder Engine(Gasoline Fuel)

255.0-hp, 2.0-liter, 4 Cylinder Engine(Gasoline Fuel)

275.0-hp, 2.7-liter, Flat 6 Cylinder Engine(Gasoline Fuel)

Combined MPG
26 0 27 26
Size
172.2" length, 50.5" height 161.1" length, 49.9" height 170.7" length, 51.4" height 172.4" length, 50.9" height
Drivetrain
Rear Wheel Drive Rear Wheel Drive Rear Wheel Drive Rear Wheel Drive

Exterior color

Exterior color

Interior color

Interior color

Luxor Beige

Black / Silver

Graphite Grey

Steel Gray

Estoril Blue

Royal Blue

Beige

Metropol Blue

Black

Black / Grey

Natural Brown

Agate Grey / Lime Gold

Platinum

Melange

Ash Black

Gray

Ginger

Espresso

Agate

Agate Grey / Amber Orange

Charcoal / Jet

Crema / Black

Dk Sepang Brown

Beige

Black

Imola Red

Black

Magma Red

Cognac

Black w / Blue Stitching

Ivory White

Luxor Beige

Black / Silver

Graphite Grey

Steel Gray

Estoril Blue

Royal Blue

Beige

Metropol Blue

Black

Black / Grey

Natural Brown

Agate Grey / Lime Gold

Platinum

Melange

Ash Black

Ginger

Espresso

Agate

Agate Grey / Amber Orange

Charcoal / Jet

Crema / Black

Transmissions

Transmissions

7-Speed A/T

M/T

6-Speed M/T

A/T

Transmission w/Dual Shift Mode

M/T

6-Speed M/T

8-Speed A/T

A/T

Transmission w/Dual Shift Mode

7-Speed A/T

M/T

6-Speed M/T

A/T

Transmission w/Dual Shift Mode

Vehicle

EPA Classification
Two Seaters Two-Seater Two Seaters Two Seaters

Wheels

Rear Wheel Material
Aluminum Alloy Aluminum Aluminum
Spare Wheel Material
N/A - N/A N/A
Front Wheel Material
Aluminum Alloy Aluminum Aluminum
Front Wheel Size
18 X 8 in 18 x 8.0 in 18 X 8 in 18 X 8 in
Spare Wheel Size
N/A - N/A N/A
Rear Wheel Size
18 X 9 in 18 x 9.0 in 18 X 9 in 18 X 9 in

Electrical

Cold Cranking Amps @ 0° F (Primary)
340 N/A N/A 340
Maximum Alternator Capacity (amps)
120 147 170 120

Engine

SAE Net Torque @ RPM
206 @ 4400 262 @ 4900 295 @ 1550 213 @ 4500
SAE Net Horsepower @ RPM
265 @ 6700 330 @ 7900 255 @ 5000 275 @ 7400
Engine Type
Premium Unleaded H-6 Gas I6 Intercooled Turbo Premium Unleaded I-4 Premium Unleaded H-6
Displacement
2.7 L/165 3.2L/198 2.0 L/122 2.7 L/165

Mileage

Cruising Range - City
338.00 mi 232.00 mi 328.80 mi 338.00 mi
Fuel Economy Est-Combined
24 MPG N/A 27 MPG 24 MPG
EPA Fuel Economy Est - Hwy
30 MPG 24 MPG 32 MPG 30 MPG
EPA MPG Equivalent - City
N/A N/A N/A N/A
EPA MPG Equivalent - Combined
N/A N/A N/A N/A
Cruising Range - Hwy
507.00 mi 348.00 mi 438.40 mi 507.00 mi
EPA MPG Equivalent - Hwy
N/A N/A N/A N/A
EPA Fuel Economy Est - City
20 MPG 16 MPG 24 MPG 20 MPG
Estimated Battery Range
- N/A N/A -

Suspension

Suspension Type - Rear
Strut Central Link Multi-Link Strut
Suspension Type - Rear (Cont.)
Strut M Sport Multi-Link Strut
Suspension Type - Front (Cont.)
Strut M Sport Strut Strut
Suspension Type - Front
Strut Strut Type Strut Strut

Brakes

Front Brake Rotor Diam x Thickness
12.4 in 13.7 x 1.10 in N/A 12.4 in
Brake ABS System (Second Line)
N/A N/A N/A N/A
Brake Type
4-Wheel Disc Pwr-Assisted 4-Wheel Disc 4-Wheel Disc
Brake ABS System
4-Wheel 4-Wheel 4-Wheel 4-Wheel
Disc - Front (Yes or )
Yes Yes Yes Yes
Drum - Rear (Yes or )
N/A - N/A N/A
Rear Brake Rotor Diam x Thickness
11.8 in 12.9 x 0.79 in N/A 11.8 in
Disc - Rear (Yes or )
Yes Yes Yes Yes

Fuel Tank

Aux Fuel Tank Capacity, Approx
N/A N/A N/A N/A
Fuel Tank Capacity, Approx
16.9 gal 14.5 gal 13.7 gal 16.9 gal

Steering

Turning Diameter - Curb to Curb
36.4 ft 34.3 ft 36.1 ft 36.4 ft
Lock to Lock Turns (Steering)
N/A 3.0 N/A N/A
Steering Type
Rack-Pinion Pwr Rack & Pinion Rack-Pinion Rack-Pinion
Steering Ratio (:1), Overall
N/A 15.4 N/A N/A
Turning Diameter - Wall to Wall
N/A N/A N/A N/A

Tires

Front Tire Size
P235/45ZR18 P225/45ZR18 P225/45VR18 P235/45ZR18
Spare Tire Size
N/A - N/A N/A
Rear Tire Size
P265/45ZR18 P255/40ZR18 P255/40VR18 P265/45ZR18

Trailering

Dead Weight Hitch - Max Tongue Wt.
N/A N/A N/A N/A
Dead Weight Hitch - Max Trailer Wt.
N/A N/A N/A N/A
Wt Distributing Hitch - Max Trailer Wt.
N/A N/A N/A N/A
Wt Distributing Hitch - Max Tongue Wt.
N/A N/A N/A N/A

Weight Information

Base Curb Weight
2888 lbs 3230 lbs 3287 lbs 2888 lbs

Dimensions

Liftover Height
N/A N/A N/A N/A
Passenger Volume
N/A N/A N/A 48 ft³
Second Shoulder Room
N/A N/A N/A N/A
Passenger Capacity
2 2 2 2
Second Leg Room
N/A N/A N/A N/A
Trunk Volume
9.9 ft³ N/A 9.9 ft³ N/A
Width, Max w/o mirrors
70.9 in 70.1 in 73.4 in 70.9 in
Front Leg Room
42.6 in 42.0 in 42.2 in N/A
Wheelbase
97.4 in 98.3 in 97.2 in 97.4 in
Height, Overall
50.5 in 50.7 in 51.4 in 50.9 in
Track Width, Rear
60.5 in 59.7 in 63.5 in 60.5 in
Front Head Room
38.6 in 37.3 in 38.9 in N/A
Track Width, Front
60.1 in 58.5 in 63.7 in 60.1 in
Second Head Room
N/A N/A N/A N/A
Second Hip Room
N/A N/A N/A N/A
Front Hip Room
53.4 in N/A N/A N/A
Length, Overall
172.2 in 161.9 in 170.7 in 172.4 in
Front Shoulder Room
51.7 in 52.5 in 54.3 in N/A
Min Ground Clearance
4.3 in N/A N/A 4.3 in

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