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Compare BMW i8 Roadster vs Mercedes-AMG GT Roadster vs Mercedes-AMG S63 Convertible

BMW i8 Roadster
2019 BMW i8 Roadster
Select configuration:
$163,300
Starting Price (MSRP)
8.3
BMW i8 Roadster Full Review
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Mercedes-AMG GT Roadster
2020 Mercedes-AMG GT Roadster
Select configuration:
$127,900
Starting Price (MSRP)
8.8
Mercedes-AMG GT Roadster Full Review
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Mercedes-AMG S63 Convertible
2020 Mercedes-AMG S63 Convertible
Select configuration:
$183,500
Starting Price (MSRP)
N/A
Mercedes-AMG S63 Convertible Full Review
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Overview

Engine
1.5-liter Turbo Inline-3 Hybrid
Engine
4.0-liter Twin-Turbo V8 Gas
Engine
4.0-liter Twin-Turbo V8 Gas
Transmission
6-Speed Automatic
Transmission
7-Speed Automatic
Transmission
9-Speed Automatic
Drivetrain
All Wheel Drive
Drivetrain
Rear Wheel Drive
Drivetrain
All Wheel Drive
Fuel Economy
N/A
Fuel Economy
City: 16 MPG
Hwy: 22 MPG
Fuel Economy
City: 15 MPG
Hwy: 24 MPG
Fuel Tank Capacity
11.1 gallons
Fuel Tank Capacity
19.8 gallons
Fuel Tank Capacity
24.3 gallons
Seating Capacity
2 seater
Seating Capacity
2 seater
Seating Capacity
4 seater
Trunk Volume
3.1 ft³
Trunk Volume
5.8 ft³
Trunk Volume
7 ft³

Photos

38
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23
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40
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Performance Specs

Engine and Transmission

Engine
1.5-liter Turbo Inline-3 Hybrid
4.0-liter Twin-Turbo V8 Gas
4.0-liter Twin-Turbo V8 Gas
Horsepower
369 hp @ 5800 rpm
469 hp @ 6000 rpm
603 hp @ 5500 rpm
Torque
420 lb-ft
465 lb-ft @ 1700 rpm
664 lb-ft @ 2750 rpm
Transmission
6-Speed Automatic
7-Speed Automatic
9-Speed Automatic
Drivetrain
All Wheel Drive
Rear Wheel Drive
All Wheel Drive

Steering

Steering Type
Rack-Pinion
Rack-Pinion
Rack-Pinion
Turning Diameter
40.4 ft
37.7 ft
N/A

Wheels

Wheels Type
Aluminum Wheels
Aluminum Wheels
Aluminum Wheels
Front Wheel Size
20" x 7.5"
19" x 9"
20" x 8.5"
Rear Wheel Size
20" x 8.5"
19" x 11"
20" x 9.5"

Suspension

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

Tires

Front Tire
P215/45YR20
P255/35ZR19
P255/40YR20
Rear Tire
P245/40YR20
P295/30ZR19
P285/35YR20

Fuel and MPG

Fuel Economy

Combined
27 MPG
18 MPG
18 MPG
City
N/A
16 MPG
15 MPG
Highway
N/A
22 MPG
24 MPG

Emissions

CO2 Emissions @ 15K mi/year
N/A
9.8 (Est) Tons/yr
N/A

Fuel Tank

Fuel Tank Capacity
11.1 gallons
19.8 gallons
24.3 gallons
Cruising Range City
N/A
316.8 miles
364.5 miles
Cruising Range Highway
N/A
435.6 miles
583.2 miles

Dimensions and Measurement

Exterior Dimensions

Length
184.9 in
179 in
198.9 in
Height
50.7 in
49.6 in
56 in
Max Width
76.5 in
76.3 in
75.3 in
Front Width
64.7 in
66.3 in
64.7 in
Rear Width
67.8 in
65 in
64.7 in
Wheelbase
110.2 in
103.5 in
115.9 in
Ground Clearance
N/A
N/A
4.5 in

Interior Space

Seating Capacity
2 seater
2 seater
4 seater
Front Seat Leg Room
43.1 in
N/A
N/A
Front Seat Headroom
38.7 in
39.5 in
37.7 in
Front Seat Shoulder Room
56.7 in
N/A
57 in
Front Seat Hip Room
N/A
N/A
60.6 in
Rear Seat Headroom
N/A
N/A
37.6 in
Rear Seat Shoulder Room
N/A
N/A
49.5 in
Rear Seat Hip Room
N/A
N/A
53.1 in

Weight and Trailing

Curb Weight
3,671 lbs
3,516 lbs
4,817 lbs

Cargo Space

Trunk Volume
3.1 ft³
5.8 ft³
7 ft³

Colors and Materials

Standard Exterior Colors

  • E-Copper Metallic w/Frozen Grey Accent
  • Individual Donington Grey Met w/Frozen Grey Accent
  • Sophisto Gray Metallic w/BMW i Frozen Blue Accent
  • Sophisto Gray Metallic w/Frozen Gray Accent
  • Black
  • Jupiter Red
  • Anthracite Blue Metallic
  • Black
  • Diamond Silver Metallic
  • Emerald Green Metallic
  • Iridium Silver Metallic
  • Lunar Blue Metallic
  • Magnetite Black Metallic
  • Obsidian Black Metallic
  • Selenite Grey Metallic

Optional Exterior Colors

  • Crystal White Pearl Metallic w/BMW i Frozen Blue
  • Crystal White Pearl Metallic w/Frozen Gray Accent
  • Brilliant Blue Metallic
  • Iridium Silver Metallic
  • Magnetite Black Metallic
  • Selenite Grey Metallic
  • designo Cardinal Red
  • designo Diamond White
  • designo Brilliant Blue Magno
  • designo Magno Iridium Silver
  • designo Magno Selenite Grey
  • designo Diamond White Metallic
  • designo Cashmere White Magno

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 Excl Dalbergia Brown, Natural Leather/Cloth Upholstery
  • Black, MB-Tex/DINAMICA Upholstery
  • Black, Nappa Leather Upholstery
  • Porcelain/Espresso Brown, Nappa Leather Upholstery

Optional Interior Materials

N/A
  • Auburn Brown, Nappa Leather Upholstery
  • Black, Nappa Leather Upholstery
  • Red Pepper/Black, Nappa Leather Upholstery
  • Silver Pearl/Black, Nappa Leather Upholstery
  • Bengal Red/Black, designo Exclusive Nappa Leather Upholstery
  • Black, designo Exclusive Nappa Leather Upholstery
  • Crystal Grey/Black, designo Exclusive Nappa Leather Upholstery
  • Porcelain/Deep-Sea Blue, designo Exclusive Nappa Leather Upholstery
  • Porcelain/Espresso Brown, designo Exclusive Nappa Leather Upholstery
  • Porcelain/Titian Red, designo Exclusive Nappa Leather Upholstery
  • Saddle Brown/Black, designo Exclusive Nappa Leather Upholstery

Features and Options

Infotainment

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

Interior Trim

Bucket Seats
Standard
Standard
Standard
Cloth Seats
Standard
Optional
Standard
Leather Seats
Standard
Optional
Standard
Leather Steering Wheel
Standard
Standard
Standard
Premium Synthetic Seats
Standard
Standard
Standard
Vinyl Seats
Standard
Optional
Standard

Comfort

Head-Up Display
Standard
Not Available
Standard
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
Automatic Parking
Not Available
Standard
Standard
Climate Control
Standard
Standard
Standard
Cooled Front Seat(s)
Not Available
Optional
Not Available
Cruise Control
Standard
Standard
Standard
Hands-Free Liftgate
Not Available
Optional
Standard
Heated Front Seat(s)
Standard
Standard
Not Available
Heated Rear Seat(s)
Not Available
Not Available
Optional
Heated Steering Wheel
Not Available
Not Available
Optional
Keyless Entry
Standard
Standard
Standard
Multi-Zone A/C
Standard
Standard
Standard
Power Driver Seat
Standard
Standard
Standard
Power Passenger Seat
Standard
Standard
Standard
Remote Engine Start
Not Available
Not Available
Standard
Remote Trunk Release
Not Available
Optional
Not Available
Seat Memory
Not Available
Standard
Not Available
Universal Garage Door Opener
Standard
Standard
Standard
Seat-Massage
Not Available
Not Available
Standard
Keyless Start
Standard
Optional
Standard
Telematics
Standard
Standard
Standard

Safety

Safety Features

Back-Up Camera
Standard
Standard
Standard
Cross-Traffic Alert
Standard
Not Available
Not Available
Rear Parking Aid
Standard
Not Available
Not Available
Blind Spot Monitor
Standard
Optional
Standard
Lane Departure Warning
Standard
Optional
Standard
Lane Keeping Assist
Not Available
Optional
Standard
ABS
Standard
Standard
Standard
Night Vision
Not Available
Not Available
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
Standard
Standard
Passenger Air Bag
Standard
Standard
Standard
Rear Side Air Bag
Not Available
Not Available
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
4 Years / 50,000 Miles
4 Years / 50,000 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
N/A
N/A
Roadside Assistance
4 Years / Unlimited Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles