compare BMW 640i Convertible 2016 vs BMW Z4 sDrive35i Roadster 2016 What's the Difference?

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Specifications

Vehicle

EPA Classification

Subcompact Cars

Two-Seaters

Engine

Engine Order Code

Engine Type

Intercooled Turbo Premium Unleaded I-6

Twin Turbo Premium Unleaded I-6

Displacement

3.0 L/182

Fuel System

Gasoline Direct Injection

SAE Net Horsepower @ RPM

315 @ 5800

300 @ 5800

SAE Net Torque @ RPM

330 @ 1400

300 @ 1400

Transmission

Drivetrain

Rear Wheel Drive

Trans Order Code

2TB

2TC

Trans Type

Trans Description Cont.

Automatic w/OD

Auto-Shift Manual w/OD

Trans Description Cont. Again

First Gear Ratio (:1)

4.71

4.78

Second Gear Ratio (:1)

3.14

3.06

Third Gear Ratio (:1)

2.11

2.15

Fourth Gear Ratio (:1)

1.67

1.68

Fifth Gear Ratio (:1)

1.28

1.39

Sixth Gear Ratio (:1)

1.00

1.20

Reverse Ratio (:1)

3.29

4.45

Clutch Size

Final Drive Axle Ratio (:1)

3.23

2.56

Seventh Gear Ratio (:1)

0.84

1.00

Eighth Gear Ratio (:1)

0.67

Weight Information

Base Curb Weight

4255 lbs

3527 lbs

Suspension

Suspension Type - Front

Double Wishbone

Strut

Suspension Type - Rear

Multi-Link

Suspension Type - Front (Cont.)

Double Wishbone

Strut

Suspension Type - Rear (Cont.)

Multi-Link

Shock Absorber Diameter - Front

Shock Absorber Diameter - Rear

Stabilizer Bar Diameter - Front

Stabilizer Bar Diameter - Rear

Brakes

Brake Type

4-Wheel Disc

Brake ABS System

4-Wheel

Brake ABS System (Second Line)

Disc - Front (Yes or )

Yes

Disc - Rear (Yes or )

Yes

Front Brake Rotor Diam x Thickness

13.7 in

Rear Brake Rotor Diam x Thickness

13.6 in

12.8 in

Drum - Rear (Yes or )

Rear Drum Diam x Width

Wheels

Front Wheel Size

18 X 8 in

Rear Wheel Size

18 X 8 in

18 X 8.5 in

Spare Wheel Size

Rear Wheel Material

Aluminum

Spare Wheel Material

Tires

Front Tire Order Code

Rear Tire Order Code

Spare Tire Order Code

Front Tire Size

P245/45VR18

P225/40WR18

Rear Tire Size

P245/45VR18

P255/35WR18

Spare Tire Size

Mileage

EPA Fuel Economy Est - Hwy

31 MPG

24 MPG

Cruising Range - City

370.00 mi

246.50 mi

EPA Fuel Economy Est - City

20 MPG

17 MPG

Fuel Economy Est-Combined

24 MPG

20 MPG

Cruising Range - Hwy

573.50 mi

348.00 mi

EPA MPG Equivalent - City

EPA MPG Equivalent - Hwy

EPA MPG Equivalent - Combined

Battery Range

Fuel Tank

Fuel Tank Capacity, Approx

18.5 gal

14.5 gal

Aux Fuel Tank Capacity, Approx

Emissions

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

7.7

9.3

EPA Greenhouse Gas Score

Steering

Steering Type

Rack-Pinion

Steering Ratio (:1), Overall

Lock to Lock Turns (Steering)

Turning Diameter - Curb to Curb

38.4 ft

35.1 ft

Turning Diameter - Wall to Wall

Interior Dimensions

Passenger Capacity

Passenger Volume

89 ft³

Front Head Room

40.3 in

39.1 in

Front Leg Room

42.1 in

42.2 in

Front Shoulder Room

56.9 in

53.3 in

Front Hip Room

Second Head Room

36.5 in

Second Leg Room

30.5 in

Second Shoulder Room

49.6 in

Second Hip Room

Exterior Dimensions

Wheelbase

112.4 in

98.3 in

Length, Overall

192.8 in

166.9 in

Width, Max w/o mirrors

74.6 in

70.5 in

Height, Overall

53.7 in

50.8 in

Track Width, Front

63 in

59.5 in

Track Width, Rear

65.2 in

60.5 in

Min Ground Clearance

4.8 in

Liftover Height

Cargo Area Dimensions

Trunk Volume

10.6 ft³

8 ft³

Trailering

Dead Weight Hitch - Max Trailer Wt.

Dead Weight Hitch - Max Tongue Wt.

Wt Distributing Hitch - Max Trailer Wt.

Wt Distributing Hitch - Max Tongue Wt.

Electrical

Cold Cranking Amps @ 0� F (Primary)

Maximum Alternator Capacity (amps)

210

170

Cooling System

Total Cooling System Capacity

Feature

MECHANICAL

Engine: 3.0L I-6 w/TwinPower Turbo.

Transmission: 8-Speed Sport Automatic.

Engine Auto Stop-Start Feature.

Transmission w/Driver Selectable Mode and STEPTRONIC Sequential Shift Control w/Steering Wheel Controls.

Rear-Wheel Drive.

3.23 Axle Ratio.

Regenerative 210 Amp Alternator.

105-Amp/Hr Maintenance-Free Battery.

5115# Gvwr 772# Maximum Payload.

Gas-Pressurized Shock Absorbers.

Front And Rear Anti-Roll Bars.

Automatic w/Driver Control Ride Control Adaptive Suspension.

Electric Power-Assist Speed-Sensing Steering.

18.5 Gal. Fuel Tank.

Dual Stainless Steel Exhaust w/Chrome Tailpipe Finisher.

Double Wishbone Front Suspension w/Coil Springs.

Multi-Link Rear Suspension w/Coil Springs.

4-Wheel Disc Brakes w/4-Wheel ABS, Front And Rear Vented Discs, Brake Assist, Hill Hold Control and Electric Parking Brake

Engine: 3.0L DOHC 24V Inline 6-Cylinder -inc: twin power turbo technology, Combines two mono-scroll turbochargers w/variable valve control (Double-VANOS) and high-precision direct injection.

Transmission: 7-Speed Double Clutch Manual.

Transmission w/Driver Selectable Mode and Sequential Shift Control w/Steering Wheel Controls.

Rear-Wheel Drive.

2.56 Axle Ratio.

Regenerative 170 Amp Alternator.

70-Amp/Hr Maintenance-Free Battery.

Gas-Pressurized Shock Absorbers.

Front And Rear Anti-Roll Bars.

Driver Control Ride Control Suspension.

Electric Power-Assist Speed-Sensing Steering.

14.5 Gal. Fuel Tank.

Dual Stainless Steel Exhaust w/Chrome Tailpipe Finisher.

Strut Front Suspension w/Coil Springs.

Multi-Link Rear Suspension w/Coil Springs.

4-Wheel Disc Brakes w/4-Wheel ABS, Front And Rear Vented Discs, Brake Assist, Hill Hold Control and Electric Parking Brake

EXTERIOR

Wheels: 18" x 8.0" Light Alloy (Style 365) -inc: Star-spoke.

Tires: P245/45R18 All Season Run-Flat.

Clearcoat Paint.

Body-Colored Front Bumper w/Chrome Bumper Insert.

Body-Colored Rear Bumper w/Chrome Bumper Insert.

Chrome Side Windows Trim.

Chrome Door Handles.

Body-Colored Power Heated Auto Dimming Side Mirrors w/Power Folding and Turn Signal Indicator.

Power Rear Window w/Defroster.

Light Tinted Glass.

Speed Sensitive Rain Detecting Variable Intermittent Wipers w/Heated Jets.

Galvanized Steel/Aluminum/Composite Panels.

Chrome Grille.

Power Convertible Top w/Lining, Glass Rear Window, Automatic Roll-Over Protection and Manual Wind Blocker.

Trunk Rear Cargo Access.

Fully Automatic Aero-Composite Led Low/High Beam Daytime Running Auto-Leveling Directionally Adaptive Auto High-Beam Headlamps w/Washer and Delay-Off.

Front Fog Lamps.

Cornering Lights.

Perimeter/Approach Lights.

LED Brakelights

Wheels: 18" x 8" Fr/18" x 8.5" Rr V-Spoke -inc: Light alloy (Style 515).

Tires: P225/40R18 Fr/P255/35R18 Rr Run-Flat Perf..

Clearcoat Paint.

Body-Colored Front Bumper.

Body-Colored Rear Bumper.

Black Side Windows Trim.

Body-Colored Door Handles.

Body-Colored Power Heated Auto Dimming Side Mirrors w/Manual Folding.

Fixed Rear Window w/Defroster.

Light Tinted Glass.

Speed Sensitive Rain Detecting Variable Intermittent Wipers w/Heated Jets.

Galvanized Steel/Aluminum Panels.

Power Convertible Retractable Hard Top w/Lining, Glass Rear Window, Fixed Roll-Over Protection and Manual Wind Blocker.

Front License Plate Bracket.

Colored Grille w/Chrome Surround.

Trunk Rear Cargo Access.

Fully Automatic Projector Beam High Intensity Low/High Beam Daytime Running Auto-Leveling Directionally Adaptive Headlamps w/Delay-Off.

Front Fog Lamps.

LED Brakelights

ENTERTAINMENT

Radio: AM/FM Stereo CD/MP3 Player -inc: anti-theft, radio data system (RDS), enhanced USB and Bluetooth including mobile office features, message dictation available w/optional 3rd-party subscription, BMW Navigation system w/10.2" high-resolution screen, 3-D maps, 200 GB hard drive w/20 GB storage for audio files, voice feedback and voice command system.

Radio w/Clock, Speed Compensated Volume Control, Steering Wheel Controls and Voice Activation.

Streaming Audio.

Window Grid Diversity Antenna.

Audio Theft Deterrent.

HD Radio -inc: "multicast" FM station reception.

Satellite Radio w/1 Year Subscription.

Hi-Fi Sound System.

1 LCD Monitor In The Front.

Turn-By-Turn Navigation Directions.

Real-Time Traffic Display

Radio: BMW Professional -inc: anti-theft AM/FM stereo, CD/MP3 player audio system w/Radio Data System (RDS), HD Radio w/multicast FM station reception, auxiliary audio input adapter for portable music players and pre-wiring for SiriusXM Satellite Radio Tuner.

Radio w/Seek-Scan, Clock, Speed Compensated Volume Control, Steering Wheel Controls and External Memory Control.

Automatic Equalizer.

Audio Theft Deterrent.

Fixed Diversity Antenna.

Hi-Fi Sound System.

Bluetooth Wireless Phone Connectivity

INTERIOR

Power Front Seats -inc: 10-way power-adjustable.

3-Stage Heated Front Seats.

Bucket Front Facing Rear Seat.

Power Tilt/Telescoping Steering Column.

Gauges -inc: Speedometer, Odometer, Tachometer, Oil Level, Oil Temperature, Power/Regen, Trip Odometer and Trip Computer.

Power Rear Windows.

Sport Leather Steering Wheel w/Auto Tilt-Away.

Front Cupholder.

Proximity Key For Doors And Push Button Start.

Interior Lock Disable.

Valet Function.

Power Fuel Flap Locking Type.

Remote Keyless Entry w/Integrated Key Transmitter, Illuminated Entry, Illuminated Ignition Switch and Panic Button.

Remote Releases -Inc: Power Cargo Access.

Garage Door Transmitter.

Cruise Control w/Steering Wheel Controls.

Dual Zone Front Automatic Air Conditioning.

HVAC -inc: Underseat Ducts and Residual Heat Recirculation.

Illuminated Glove Box.

Driver Foot Rest.

Interior Trim -inc: Genuine Wood/Metal-Look Instrument Panel Insert, Genuine Wood Door Panel Insert, Leather/Genuine Wood Console Insert, Chrome/Metal-Look Interior Accents and Leatherette Upholstered Dashboard.

Full Cloth Headliner.

Leather Door Trim Insert.

Leather/Metal-Look Gear Shift Knob.

Dakota Leather Upholstery.

Day-Night Auto-Dimming Rearview Mirror.

Driver And Passenger Visor Vanity Mirrors w/Driver And Passenger Illumination.

Full Floor Console w/Locking Storage and 2 12V DC Power Outlets.

Front Map Lights.

Fade-To-Off Interior Lighting.

Full Carpet Floor Covering -inc: Carpet Front And Rear Floor Mats.

Carpet Floor Trim and Carpet Trunk Lid/Rear Cargo Door Trim.

Cargo Area Concealed Storage.

Cargo Space Lights.

Door Mirrors, Steering Wheel and Head Restraints.

FOB Controls -inc: Trunk/Hatch/Tailgate, Windows and Sunroof/Convertible Roof.

Integrated Navigation System w/Voice Activation.

Tracker System.

Driver And Passenger Door Bins.

Delayed Accessory Power.

Power Door Locks w/Autolock Feature.

Power 1st Row Windows w/Front And Rear 1-Touch Up/Down.

Systems Monitor.

Redundant Digital Speedometer.

Trip Computer.

Outside Temp Gauge.

Analog Display.

Power Anti-Whiplash w/Tilt Front Head Restraints and Fixed Rear Head Restraints.

Front Center Armrest and Rear Center Armrest w/Pass-Thru w/Storage.

2 Seatback Storage Pockets.

4-Way Lumbar Support.

Perimeter Alarm.

Engine Immobilizer.

2 12V DC Power Outlets.

Air Filtration

Sport Seats -inc: 10-way power adjustment, power adjustable side bolsters and 2-way manually adjustable thigh support.

Power Front Seats -inc: 2 presets for exterior mirror and seat positions.

Driver Seat.

Passenger Seat.

Manual Tilt/Telescoping Steering Column.

Gauges -inc: Speedometer, Odometer, Tachometer, Oil Temperature, Trip Odometer and Trip Computer.

Power Rear Windows.

Sport Leather/Metal-Look Steering Wheel.

Front Cupholder.

Front Cigar Lighter(s).

Ashtray.

Compass.

Proximity Key For Doors And Push Button Start.

Interior Lock Disable.

Valet Function.

Power Fuel Flap Locking Type.

Remote Keyless Entry w/Integrated Key Transmitter, 2 Door Curb/Courtesy, Illuminated Entry and Panic Button.

Remote Releases -Inc: Power Cargo Access.

Garage Door Transmitter.

Cruise Control.

Distance Pacing.

Dual Zone Front Automatic Air Conditioning.

HVAC -inc: Residual Heat Recirculation.

Illuminated Locking Glove Box.

Driver Foot Rest.

Interior Trim -inc: Aluminum Instrument Panel Insert, Aluminum Door Panel Insert, Aluminum Console Insert and Chrome/Metal-Look Interior Accents.

Full Cloth Headliner.

Leather/Metal-Look Gear Shift Knob.

Kansas Leather Upholstery -inc: sun-reflective technology and leather seat surfaces, headrests and armrests in center console and doors.

Day-Night Auto-Dimming Rearview Mirror.

Driver And Passenger Visor Vanity Mirrors.

Full Floor Console w/Covered Storage and 1 12V DC Power Outlet.

Front Map Lights.

Fade-To-Off Interior Lighting.

Full Carpet Floor Covering -inc: Carpet Front Floor Mats.

Carpet Floor Trim and Carpet Trunk Lid/Rear Cargo Door Trim.

Trunk/Hatch Auto-Latch.

Cargo Area Concealed Storage.

Cargo Space Lights.

FOB Controls -inc: Trunk/Hatch/Tailgate, Windows and Sunroof/Convertible Roof.

Tracker System.

Covered Dashboard Storage, Interior Concealed Storage, Driver And Passenger Door Bins.

Power 1st Row Windows w/Front And Rear 1-Touch Up/Down.

Delayed Accessory Power.

Power Door Locks.

Systems Monitor.

Trip Computer.

Outside Temp Gauge.

Analog Display.

Fixed Front Head Restraints.

Front Center Armrest.

2 Seatback Storage Pockets.

4-Way Power Adjustable Lumbar Support.

Perimeter Alarm.

Engine Immobilizer.

1 12V DC Power Outlet.

Air Filtration

SAFETY

DSC III Electronic Stability Control (ESC).

ABS And Driveline Traction Control.

Side Impact Beams.

Dual Stage Driver And Passenger Seat-Mounted Side Airbags.

Emergency Sos.

Front And Rear Parking Sensors.

Forward Collision.

Tire Specific Low Tire Pressure Warning.

Dual Stage Driver And Passenger Front Airbags.

Airbag Occupancy Sensor.

First Aid Kit.

Outboard Front Lap And Shoulder Safety Belts -inc: Pretensioners and Front Seat-Integrated.

Driver And Passenger Side Airbag Head Extension, Driver And Passenger Knee Airbag.

Back-Up Camera

Electronic Stability Control (ESC).

ABS And Driveline Traction Control.

Side Impact Beams.

Dual Stage Driver And Passenger Seat-Mounted Side Airbags.

BMW Assist eCall Emergency Sos.

Low Tire Pressure Warning.

Dual Stage Driver And Passenger Front Airbags.

Airbag Occupancy Sensor.

Driver And Passenger Side Airbag Head Extension, Driver And Passenger Knee Airbag.

Outboard Front Lap And Shoulder Safety Belts -inc: Pretensioners

PACKAGE

Safety and Warranty

Rebate

Warranty

Basic Years:
4.

Basic Miles/km:
50,000.

Drivetrain Years:
4.

Drivetrain Miles/km:
50,000.

Corrosion Years:
12.

Corrosion Miles/km:
Unlimited.

Roadside Assistance Years:
4.

Roadside Assistance Miles/km:
Unlimited.

Maintenance Years:
4.

Maintenance Miles/km:
50,000