Specs

Research 2003 BMW Z4 specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

2.5i Roadster

Brakes

Disc - Rear (Yes or ) Yes
Front Brake Rotor Diam x Thickness (in) 11.25 x - TBD -
Disc - Front (Yes or ) Yes
Brake Type Pwr-Assisted
Drum - Rear (Yes or )
Rear Brake Rotor Diam x Thickness (in) 11.0 x - TBD -
Rear Drum Diam x Width (in)
Brake ABS System 4-Wheel

Cargo Area Dimensions

Trunk Volume (ft³) 10.2

Cooling System

Total Cooling System Capacity (qts) - TBD -

Electrical

Cold Cranking Amps @ 0° F (Primary) - TBD -
Maximum Alternator Capacity (amps) 120

Engine

Engine Type Gas 6-Cyl
Displacement 2.5/152
Fuel System SMPI
SAE Net Horsepower @ RPM 184 @ 6000
SAE Net Torque @ RPM 175 @ 3500
Engine Order Code

Exterior Dimensions

Track Width, Front (in) 58.0
Min Ground Clearance (in) - TBD -
Wheelbase (in) 98.2
Liftover Height (in) - TBD -
Track Width, Rear (in) 60.0
Height, Overall (in) 50.1
Width, Max w/o mirrors (in) 70.1
Length, Overall (in) 161.0

Fuel Tank

Fuel Tank Capacity, Approx (gal) 14.5

Interior Dimensions

Front Head Room (in) 37.3
Passenger Capacity 2
Passenger Volume (ft³) 57.0
Front Hip Room (in) - TBD -
Front Shoulder Room (in) 52.5
Front Leg Room (in) 42.0

Mileage

EPA Fuel Economy Est - Hwy (MPG) 28
EPA Fuel Economy Est - City (MPG) 20
EPA Fuel Economy Est - City (MPG) 21

Steering

Lock to Lock Turns (Steering) 3.0
Turning Diameter - Curb to Curb (ft) 32.0
Turning Diameter - Wall to Wall (ft) - TBD -
Steering Type Pwr Rack & Pinion
Steering Ratio (:1), Overall 13.7

Summary

Vehicle Name BMW Z4
Vehicle Name BMW Z4
Body Style 2 Door Roadster

Suspension

Suspension Type - Rear Central Link
Stabilizer Bar Diameter - Rear (in) - TBD -
Stabilizer Bar Diameter - Front (in) - TBD -
Shock Absorber Diameter - Rear (mm) - TBD -
Shock Absorber Diameter - Front (mm) - TBD -
Suspension Type - Rear (Cont.) w/Transverse Links
Suspension Type - Front (Cont.) w/Lower Arms
Suspension Type - Front Strut Type

Tires

Front Tire Order Code
Spare Tire Size Compact
Rear Tire Size P225/50R16
Rear Tire Size P225/45R17
Front Tire Size P225/50R16
Front Tire Size P225/45R17
Spare Tire Order Code
Rear Tire Order Code

Trailering

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

Transmission

Drivetrain Rear Wheel Drive
Final Drive Axle Ratio (:1) 3.07
Final Drive Axle Ratio (:1) 3.64
Clutch Size (in) - TBD -
Clutch Size (in)
Reverse Ratio (:1) 4.04
Reverse Ratio (:1) 3.93
Reverse Ratio (:1) 4.10
Sixth Gear Ratio (:1)
Sixth Gear Ratio (:1) 0.85
Fifth Gear Ratio (:1) 1.00
First Gear Ratio (:1) 4.35
First Gear Ratio (:1) 3.67
Trans Description Cont. Again
Trans Description Cont. Manual
Trans Description Cont. SMG
Trans Description Cont. Automatic
Trans Type 5
Trans Type 6
Trans Order Code
Trans Order Code 206
Trans Order Code 205
Final Drive Axle Ratio (:1) 3.46
Fifth Gear Ratio (:1) 0.74
Fourth Gear Ratio (:1) 1.22
Fourth Gear Ratio (:1) 1.24
Fourth Gear Ratio (:1) 1.00
Third Gear Ratio (:1) 1.66
Third Gear Ratio (:1) 1.67
Third Gear Ratio (:1) 1.41
Second Gear Ratio (:1) 2.52
Second Gear Ratio (:1) 2.50
Second Gear Ratio (:1) 2.00
First Gear Ratio (:1) 4.23

Vehicle

EPA Classification Two-Seater

Weight Information

Base Curb Weight (lbs) 2998
Base Curb Weight (lbs) 2932
Base Curb Weight (lbs) 2976

Wheels

Spare Wheel Size (in) Compact
Front Wheel Material Alloy
Front Wheel Size (in) 17 x 8.0
Spare Wheel Material - TBD -
Rear Wheel Material Alloy
Front Wheel Size (in) 16 x 7.0
Rear Wheel Size (in) 17 x 8.0
Rear Wheel Size (in) 16 x 7.0

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