Specs

Research 2009 BMW Z4 specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

sDrive30i Roadster

Brakes

Front Brake Rotor Diam x Thickness (in) 11.8 x - TBD -
Brake Type Pwr-Assisted
Drum - Rear (Yes or )
Rear Drum Diam x Width (in)
Brake ABS System 4-Wheel
Disc - Front (Yes or ) Yes
Disc - Rear (Yes or ) Yes
Rear Brake Rotor Diam x Thickness (in) 11.8 x - TBD -

Cargo Area Dimensions

Trunk Volume (ft³) 8.0

Cooling System

Total Cooling System Capacity (qts) - TBD -

Electrical

Maximum Alternator Capacity (amps) 147
Cold Cranking Amps @ 0° F (Primary) - TBD -

Emissions

EPA Greenhouse Gas Score 5

Engine

Engine Type Gas I6
Fuel System - TBD -
SAE Net Horsepower @ RPM 255 @ 6600
SAE Net Torque @ RPM 220 @ 2600
Engine Order Code
Displacement 3.0L/182.8

Exterior Dimensions

Length, Overall (in) 166.9
Liftover Height (in) - TBD -
Min Ground Clearance (in) - TBD -
Track Width, Rear (in) 61.4
Track Width, Front (in) 59.5
Height, Overall (in) 50.8
Width, Max w/o mirrors (in) 70.5
Wheelbase (in) 98.3

Fuel Tank

Fuel Tank Capacity, Approx (gal) 14.5

Interior Dimensions

Front Leg Room (in) 42.2
Front Shoulder Room (in) 53.3
Front Hip Room (in) - TBD -
Front Head Room (in) 39.1
Passenger Volume (ft³) - TBD -
Passenger Capacity 2

Mileage

EPA Fuel Economy Est - City (MPG) 19
Fuel Economy Est-Combined (MPG) 22
EPA Fuel Economy Est - Hwy (MPG) 28
EPA Fuel Economy Est - Hwy (MPG) 29

Steering

Turning Diameter - Curb to Curb (ft) 35.1
Lock to Lock Turns (Steering) 3.0
Steering Ratio (:1), Overall 14.4
Steering Type Pwr Rack & Pinion
Turning Diameter - Wall to Wall (ft) - TBD -

Summary

Vehicle Name BMW Z4
Body Style 2 Dr Conv

Suspension

Shock Absorber Diameter - Rear (mm) - TBD -
Stabilizer Bar Diameter - Front (in) - TBD -
Stabilizer Bar Diameter - Rear (in) - TBD -
Suspension Type - Front - TBD -
Suspension Type - Rear - TBD -
Suspension Type - Front (Cont.)
Suspension Type - Rear (Cont.)
Shock Absorber Diameter - Front (mm) - TBD -

Tires

Front Tire Size P225/45R17
Rear Tire Size P225/45R17
Spare Tire Size
Front Tire Order Code
Rear Tire Order Code
Spare Tire Order Code
Front Tire Size P225/40R18
Rear Tire Size P255/35R18

Trailering

Dead Weight Hitch - Max Trailer Wt. (lbs)
Wt Distributing Hitch - Max Trailer Wt. (lbs)
Wt Distributing Hitch - Max Tongue Wt. (lbs)
Dead Weight Hitch - Max Tongue Wt. (lbs)

Transmission

Drivetrain Rear Wheel Drive
Final Drive Axle Ratio (:1) 3.64
Clutch Size (in) - TBD -
Third Gear Ratio (:1) 1.52
Second Gear Ratio (:1) 2.01
Second Gear Ratio (:1) 2.34
First Gear Ratio (:1) 3.50
First Gear Ratio (:1) 4.17
Trans Description Cont. Again
Trans Description Cont. Manual
Trans Description Cont. Automatic
Trans Type 6
Trans Order Code
Final Drive Axle Ratio (:1) 4.27
Reverse Ratio (:1) 3.19
Reverse Ratio (:1) 3.40
Sixth Gear Ratio (:1) 0.70
Sixth Gear Ratio (:1) 0.69
Fifth Gear Ratio (:1) 0.81
Fifth Gear Ratio (:1) 0.87
Fourth Gear Ratio (:1) 1.00
Fourth Gear Ratio (:1) 1.14
Third Gear Ratio (:1) 1.31

Vehicle

EPA Classification Two-Seater

Weight Information

Base Curb Weight (lbs) 3241
Base Curb Weight (lbs) 3307

Wheels

Spare Wheel Material
Front Wheel Size (in) 17 x 8.0
Front Wheel Size (in) 18 x 8.5
Rear Wheel Size (in) 17 x 8.0
Spare Wheel Size (in)
Rear Wheel Size (in) 18 x 8.5
Front Wheel Material Alloy
Rear Wheel Material Alloy