Specs

Research 2013 BMW Z4 specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.

sDrive28i Roadster

Brakes

Brake Type Pwr
Rear Drum Diam x Width (in)
Drum - Rear (Yes or )
Rear Brake Rotor Diam x Thickness (in) 11.800 x 0.800
Front Brake Rotor Diam x Thickness (in) 13.000 x 0.900
Disc - Rear (Yes or ) Yes
Disc - Front (Yes or ) Yes
Brake ABS System 4-Wheel

Cargo Area Dimensions

Trunk Volume (ft³) 10.900/6.400

Cooling System

Total Cooling System Capacity (qts) 8.700

Electrical

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

Emissions

Tons/yr of CO2 Emissions @ 15K mi/year 7.1
Tons/yr of CO2 Emissions @ 15K mi/year 7.0
EPA Greenhouse Gas Score 7

Engine

SAE Net Torque @ RPM 260 @ 1250 - 4800
Engine Order Code
Engine Type Turbocharged Gas I4
Displacement 2.0L/122
Fuel System Direct Injection
SAE Net Horsepower @ RPM 240 @ 5000

Exterior Dimensions

Track Width, Rear (in) - TBD -
Width, Max w/o mirrors (in) 70.500
Wheelbase (in) 98.300
Height, Overall (in) 50.800
Track Width, Front (in) 59.500
Length, Overall (in) 167.000
Liftover Height (in) - TBD -
Min Ground Clearance (in) 5.100

Fuel Tank

Fuel Tank Capacity, Approx (gal) 14.500

Interior Dimensions

Passenger Volume (ft³) - TBD -
Front Hip Room (in) - TBD -
Passenger Capacity 2
Front Leg Room (in) 42.200
Front Head Room (in) - TBD -
Front Shoulder Room (in) 53.300

Mileage

EPA Fuel Economy Est - Hwy (MPG) 34
Fuel Economy Est-Combined (MPG) 26
EPA Fuel Economy Est - City (MPG) 22
EPA Fuel Economy Est - Hwy (MPG) 33

Steering

Steering Ratio (:1), Overall 14.400
Steering Type Electric Rack & Pinion
Lock to Lock Turns (Steering) 3.000
Turning Diameter - Curb to Curb (ft) 35.100
Turning Diameter - Wall to Wall (ft) - TBD -

Summary

Body Style Convertible
Vehicle Name BMW Z4

Suspension

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

Tires

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

Trailering

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

Transmission

Seventh Gear Ratio (:1) 0.840
Eighth Gear Ratio (:1) 0.670
Eighth Gear Ratio (:1)
Reverse Ratio (:1) 3.350
Trans Description Cont. Again
Trans Description Cont. Manual
Trans Description Cont. Automatic w/Manual Shift
Trans Type 6
Trans Type 8
Trans Order Code
Final Drive Axle Ratio (:1) 3.080
Final Drive Axle Ratio (:1) 3.730
Clutch Size (in) - TBD -
Drivetrain Rear Wheel Drive
Seventh Gear Ratio (:1)
Reverse Ratio (:1) 3.300
Sixth Gear Ratio (:1) 0.680
Sixth Gear Ratio (:1) 1.000
Fifth Gear Ratio (:1) 0.810
Fifth Gear Ratio (:1) 1.290
Fourth Gear Ratio (:1) 1.000
Fourth Gear Ratio (:1) 1.670
Third Gear Ratio (:1) 1.310
Third Gear Ratio (:1) 2.110
Second Gear Ratio (:1) 2.060
Second Gear Ratio (:1) 3.140
First Gear Ratio (:1) 3.680
First Gear Ratio (:1) 4.710

Vehicle

EPA Classification Two Seaters

Weight Information

Base Curb Weight (lbs) 3263
Base Curb Weight (lbs) 3307

Wheels

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