Compare BMW i8 Roadster vs Porsche 911 Targa 4 vs Porsche 911 Turbo Cabriolet

BMW i8 Roadster
2020 BMW i8 Roadster
Select configuration:
$163,300
Starting Price (MSRP)
8.3
BMW i8 Roadster Full Review
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Porsche 911 Targa 4
2021 Porsche 911 Targa 4
Select configuration:
$119,300
Starting Price (MSRP)
8.8
Porsche 911 Targa 4 Full Review
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Porsche 911 Turbo Cabriolet
2021 Porsche 911 Turbo Cabriolet
Select configuration:
$183,600
Starting Price (MSRP)
9.1
Porsche 911 Turbo Cabriolet Full Review
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Overview

Engine
1.5-liter Turbo Inline-3 Plug-in Hybrid
Engine
3.0-liter Twin-Turbo Flat 6 Gas
Engine
3.8-liter Twin-Turbo Flat 6 Gas
Transmission
6-Speed Automatic
Transmission
8-Speed Automatic
Transmission
8-Speed Automatic
Drivetrain
All-Wheel Drive
Drivetrain
Other
Drivetrain
Other
Fuel Tank Capacity
11.1 gallons
Fuel Tank Capacity
17.6 gallons
Fuel Tank Capacity
17.6 gallons
Seating Capacity
2 seater
Seating Capacity
4 seater
Seating Capacity
4 seater
Trunk Volume
3.1 ft³
Trunk Volume
N/A
Trunk Volume
N/A

Photos

38
More
11
More
35
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Performance Specs

Engine and Transmission

Engine
1.5-liter Turbo Inline-3 Plug-in Hybrid
3.0-liter Twin-Turbo Flat 6 Gas
3.8-liter Twin-Turbo Flat 6 Gas
Horsepower
369 hp @ 5800 rpm
379 hp @ 6500 rpm
572 hp @ 6500 rpm
Torque
420 lb-ft
331 lb-ft @ 1950 rpm
553 lb-ft @ 2250 rpm
Transmission
6-Speed Automatic
8-Speed Automatic
8-Speed Automatic
Drivetrain
All-Wheel Drive
Other
Other

Steering

Steering Type
Rack-Pinion
Rack-Pinion
Rack-Pinion
Turning Diameter
40.4 ft
36.8 ft
35.8 ft

Wheels

Wheels Type
Aluminum Wheels
Aluminum Wheels
Aluminum Wheels
Front Wheel Size
20" x 7.5"
19" x 8.5"
20" x 9"
Rear Wheel Size
20" x 8.5"
20" x 11.5"
21" x 11.5"

Suspension

Front Suspension
Double Wishbone
Strut
Strut
Rear Suspension
Multi-Link
Multi-Link
Multi-Link

Tires

Front Tire
P215/45YR20
P235/40YR19
P255/35YR20
Rear Tire
P245/40YR20
P295/35YR20
P315/30YR21

Fuel and MPG

Fuel Economy

Combined
27 MPG
N/A
N/A

Fuel Tank

Fuel Tank Capacity
11.1 gallons
17.6 gallons
17.6 gallons

Dimensions and Measurement

Exterior Dimensions

Length
184.9 in
177.9 in
178.6 in
Height
50.7 in
51.1 in
51.3 in
Max Width
76.5 in
72.9 in
74.9 in
Front Width
64.7 in
62.7 in
62.4 in
Rear Width
67.8 in
61.2 in
63 in
Wheelbase
110.2 in
96.5 in
96.5 in

Interior Space

Seating Capacity
2 seater
4 seater
4 seater
Front Seat Leg Room
43.1 in
N/A
N/A
Front Seat Headroom
38.7 in
N/A
N/A
Front Seat Shoulder Room
56.7 in
N/A
N/A

Weight and Towing

Curb Weight
3,671 lbs
3,658 lbs
3,790 lbs

Cargo Space

Trunk Volume
3.1 ft³
N/A
N/A

Colors and Materials

Standard Exterior Colors

  • E-Copper Metallic w/Frozen Grey Accent
  • Sophisto Gray Metallic w/BMW i Frozen Blue Accent
  • Sophisto Gray Metallic w/Frozen Gray Accent
  • Special Order Color
  • Black
  • Guards Red
  • Racing Yellow
  • White
  • Agate Grey Metallic
  • Aventurine Green Metallic
  • Black
  • Carrara White Metallic
  • Dolomite Silver Metallic
  • Gentian Blue Metallic
  • GT Silver Metallic
  • Guards Red
  • Jet Black Metallic
  • Night Blue Metallic
  • Racing Yellow
  • White

Optional Exterior Colors

  • Crystal White Pearl Metallic w/BMW i Frozen Blue
  • Crystal White Pearl Metallic w/Frozen Gray Accent
  • Agate Grey Metallic
  • Aventurine Green Metallic
  • Carrara White Metallic
  • Dolomite Silver Metallic
  • Gentian Blue Metallic
  • GT Silver Metallic
  • Jet Black Metallic
  • Night Blue Metallic
  • Carmine Red
  • Chalk
  • Lava Orange
  • Miami Blue
  • Python Green
  • Custom Color
  • Carmine Red
  • Chalk
  • Lava Orange
  • Miami Blue
  • Python Green
  • Custom Color

Standard Interior Materials

  • E-Copper Exclusive, Natural Leather/Cloth Upholstery
  • Giga Amido, Full Perforated Leather Upholstery
  • Giga Ivory White/Black, Full Perforated Leather Upholstery
  • Tera Dalbergia Brown, Natural Leather/Cloth Upholstery
  • Atacama Beige/Black, Leather Seat Trim w/Two-Tone Heritage Design Interior
  • Black, Leather Seat Trim
  • Black, Leather Seat Trim
  • Black, Leather Seat Trim w/Heritage Design Interior
  • Chalk/Bordeaux Red, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • Iceland Green/Black, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • Mojave Beige/Blue, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • Slate Grey, Leather Seat Trim
  • Slate Grey, Leather Seat Trim
  • Slate Grey/Black, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • Atacama Beige/Black, Leather Seat Trim w/Two-Tone Heritage Design Interior
  • Black, Leather Seat Trim w/Heritage Design Interior
  • Black, Leather Seat Trim w/Leather Interior
  • Black, Leather Seat Trim w/Sport-Tex Centers
  • Black, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Black, Lthr Seat Trim w/Sport-Tex Centers & Chalk Stitching
  • Bordeaux Red, Leather Seat Trim w/Leather Interior
  • Bordeaux Red, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Chalk/Bordeaux Red, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • Graphite Blue, Leather Seat Trim w/Leather Interior
  • Graphite Blue, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Iceland Green/Black, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • Mojave Beige/Blue, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • Slate Grey, Leather Seat Trim w/Leather Interior
  • Slate Grey, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Slate Grey/Black, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior

Optional Interior Materials

N/A
  • Mojave Beige/Black, Leather Seat Trim w/Two-Tone Interior
  • Mojave Beige/Black, Leather Seat Trim w/Two-Tone Interior
  • Black, Leather Seat Trim w/Leather Package
  • Slate Grey, Leather Seat Trim w/Leather Package
  • Black, Leather Seat Trim w/Leather Interior
  • Black, Leather Seat Trim w/Sport-Tex Centers
  • Black, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Black, Lthr Seat Trim w/Sport-Tex Centers & Chalk Stitching
  • Bordeaux Red, Leather Seat Trim w/Leather Interior
  • Bordeaux Red, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Graphite Blue, Leather Seat Trim w/Leather Interior
  • Graphite Blue, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Slate Grey, Leather Seat Trim w/Leather Interior
  • Slate Grey, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Bordeaux Red/Black, Leather Seat Trim w/Two-Tone Leather Interior
  • Chalk/Slate Grey, Leather Seat Trim w/Two-Tone Leather Interior
  • Iceland Green/Black, Leather Seat Trim w/Two-Tone Leather Interior
  • Mojave Beige/Black, Leather Seat Trim w/Two-Tone Leather Interior
  • Agave Green, Club Leather Seat Trim
  • Agave Green, Club Leather Seat Trim w/Chalk Stitching
  • Truffle Brown, Club Leather Seat Trim
  • Truffle Brown, Club Leather Seat Trim w/Chalk Stitching
  • Bordeaux Red/Black, Leather Seat Trim w/Two-Tone Leather Interior
  • Chalk/Slate Grey, Leather Seat Trim w/Two-Tone Leather Interior
  • Iceland Green/Black, Leather Seat Trim w/Two-Tone Leather Interior
  • Mojave Beige/Black, Leather Seat Trim w/Two-Tone Leather Interior
  • Agave Green, Club Leather Seat Trim
  • Agave Green, Club Leather Seat Trim w/Chalk Stitching
  • Truffle Brown, Club Leather Seat Trim
  • Truffle Brown, Club Leather Seat Trim w/Chalk Stitching

Features and Options

Infotainment

Bluetooth Connection
Standard
Standard
Standard
Hard Disk Drive Media Storage
Standard
Not Available
Not Available
Premium Sound System
Standard
Optional
Standard
Satellite Radio
Standard
Standard
Standard
Smart Device Integration
Standard
Standard
Standard
WiFi Hotspot
Not Available
Standard
Standard
Auxiliary Audio Input
Standard
Standard
Standard
MP3 Player
Standard
Standard
Standard

Interior Trim

Bucket Seats
Standard
Standard
Standard
Cloth Seats
Standard
Standard
Standard
Leather Seats
Standard
Standard
Standard
Leather Steering Wheel
Standard
Standard
Standard
Premium Synthetic Seats
Standard
Standard
Standard
Vinyl Seats
Standard
Standard
Standard
Woodgrain Interior Trim
Not Available
Optional
Optional

Comfort

Head-Up Display
Standard
Not Available
Not Available
Navigation System
Standard
Standard
Standard
Steering Wheel Audio Controls
Standard
Standard
Standard
Power Mirror(s)
Standard
Standard
Standard
A/C
Standard
Standard
Standard
Adaptive Cruise Control
Not Available
Optional
Optional
Climate Control
Standard
Standard
Standard
Cooled Front Seat(s)
Not Available
Optional
Optional
Cruise Control
Standard
Standard
Standard
Heated Front Seat(s)
Standard
Standard
Standard
Heated Steering Wheel
Not Available
Optional
Standard
Keyless Entry
Standard
Standard
Standard
Multi-Zone A/C
Standard
Standard
Standard
Power Driver Seat
Standard
Not Available
Not Available
Power Passenger Seat
Standard
Not Available
Not Available
Universal Garage Door Opener
Standard
Standard
Standard
Keyless Start
Standard
Standard
Standard
Telematics
Standard
Not Available
Not Available

Safety

Safety Features

Back-Up Camera
Standard
Standard
Standard
Cross-Traffic Alert
Standard
Not Available
Not Available
Rear Parking Aid
Standard
Standard
Standard
Blind Spot Monitor
Standard
Optional
Optional
Lane Departure Warning
Standard
Optional
Optional
Lane Keeping Assist
Not Available
Optional
Optional
ABS
Standard
Standard
Standard
Night Vision
Not Available
Optional
Optional
Tire Pressure Monitor
Standard
Standard
Standard
Brake Assist
Standard
Standard
Standard
Stability Control
Standard
Standard
Standard
Traction Control
Standard
Standard
Standard

Airbags

Driver Air Bag
Standard
Standard
Standard
Front Head Air Bag
Not Available
Standard
Standard
Front Side Air Bag
Standard
Standard
Standard
Knee Air Bag
Standard
Not Available
Not Available
Passenger Air Bag
Standard
Standard
Standard

Warranty

Warranty Summary

Basic
4 Years / 50,000 Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles
Corrosion
12 Years / Unlimited Miles
12 Years / Unlimited Miles
12 Years / Unlimited Miles
Drivetrain
4 Years / 50,000 Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles
Hybrid/Electric Components
8 Years / 100,000 Miles
N/A
N/A
Maintenance
3 Years / 36,000 Miles
1 Years / 10,000 Miles
1 Years / 10,000 Miles
Roadside Assistance
4 Years / Unlimited Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles