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2015 BMW Z4 28i 2dr Roadster

Trim Info:

Rear Wheel Drive, Roadster, Two-Seaters
22 (Est) mpg city / 34 (Est) mpg hwy

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Technical Specifications

Technical Data

Body Style:

Roadster

Drivetrain:

Rear Wheel Drive

EPA Classification:

Two-Seaters

Passenger Capacity:

Base Curb Weight (lbs):

3263

EPA Fuel Economy Est - City (MPG):

22 (Est)

EPA Fuel Economy Est - Hwy (MPG):

34 (Est)

Engine Type:

Intercooled Turbo Premium Unleaded I-4

Displacement:

2.0 L/122

Fuel System:

Direct Gasoline Injection

SAE Net Horsepower @ RPM:

240 @ 5000

SAE Net Torque @ RPM:

260 @ 1250

Trans Description Cont.:

Manual w/OD

Suspension Type - Front:

Strut

Suspension Type - Rear:

Multi-Link

Front Tire Size:

P225/45VR17

Rear Tire Size:

P225/45VR17

Front Wheel Size (in):

17 X 8

Rear Wheel Size (in):

17 X 8

Front Wheel Material:

Aluminum

Rear Wheel Material:

Aluminum

Brake ABS System:

4-Wheel

Disc - Front (Yes or ):

Yes

Disc - Rear (Yes or ):

Yes

Rear Brake Rotor Diam x Thickness (in):

11.8

Fuel Tank Capacity, Approx (gal):

14.5

Wheelbase (in):

98.3

Length, Overall (in):

166.9

Trunk Volume (ft³):

Advanced Technical Data

Fuel Economy Est-Combined (MPG):

26 (Est)

Engine Order Code:

_BC27_

Trans Order Code:

ZMT

Trans Type:

First Gear Ratio (:1):

3.68

Second Gear Ratio (:1):

2.06

Third Gear Ratio (:1):

1.31

Fourth Gear Ratio (:1):

1.00

Fifth Gear Ratio (:1):

0.81

Sixth Gear Ratio (:1):

0.68

Reverse Ratio (:1):

3.35

Final Drive Axle Ratio (:1):

3.08

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

7.1 (Est)

Maximum Alternator Capacity (amps):

170

Suspension Type - Front (Cont.):

Strut

Suspension Type - Rear (Cont.):

Multi-Link

Steering Type:

Rack-Pinion

Turning Diameter - Curb to Curb (ft):

35.1

Front Brake Rotor Diam x Thickness (in):

Front Head Room (in):

39.1

Front Leg Room (in):

42.2

Front Shoulder Room (in):

53.3

Width, Max w/o mirrors (in):

70.5

Height, Overall (in):

50.8

Track Width, Front (in):

59.5

Track Width, Rear (in):

61.4

Seventh Gear Ratio (:1):

0.84

Eighth Gear Ratio (:1):

0.67

Tips on Servicing

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By Zach Bowman For those who suffer a daily commute through heavy traffic, your vehicle's braking system can bring thousands of pounds of metal, plastic and empty Starbucks cups to a stop hundreds of times before you get to work. It goes without saying that these pieces wear out, but they do so slowly, meaning you may not notice they need attention until ...