Compare BMW i8 Roadster vs Mercedes-AMG GT Roadster

Engine

1.5L Turbo Inline-3 Plug-in Hybrid

Engine

4.0L Twin-Turbo V8 Gas

Transmission

6-Speed Automatic

Transmission

7-Speed Automatic

Drivetrain

All-Wheel Drive

Drivetrain

Rear-Wheel Drive

Fuel Economy

N/A

Fuel Economy

City: 15 MPG

Hwy: 20 MPG

Fuel Tank Capacity

11.1 gallons

Fuel Tank Capacity

19.8 gallons

Range

18 miles

Range

N/A

Seating Capacity

2 seater

Seating Capacity

2 seater

Trunk Volume

3.1 ft³

Trunk Volume

5.8 ft³

2019-2020 BMW i8 Roadster Rear View Driving

2020-2021 Mercedes-Benz AMG GT Roadster Open Top

2020-2021 Mercedes-Benz AMG GT Roadster Center Stack

Engine and Transmission

Engine

1.5L Turbo Inline-3 Plug-in Hybrid

4.0L Twin-Turbo V8 Gas

Horsepower

369 hp @ 5800 rpm

523 hp @ 5500 rpm

Torque

420 lb-ft

494 lb-ft @ 2100 rpm

Transmission

6-Speed Automatic

7-Speed Automatic

Drivetrain

All-Wheel Drive

Rear-Wheel Drive

Weight and Towing

Curb Weight

3,671 lbs

3,763 lbs

Fuel Economy

Combined

27 MPG

17 MPG

City

N/A

15 MPG

Highway

N/A

20 MPG

Emissions

CO2 Emissions @ 15K mi/year

N/A

10.4 Tons/yr

Fuel Tank

Fuel Tank Capacity

11.1 gallons

19.8 gallons

Cruising Range City

N/A

297 miles

Cruising Range Highway

N/A

396 miles

Battery Range & Charge Times

Range

18 miles

N/A

Battery Size

11.6 kWh

N/A

Charge Time

3 Hrs Charge Time @ 220/240V

N/A

Exterior Dimensions

Length

184.9 in

179 in

Height

50.7 in

49.6 in

Max Width

76.5 in

76.3 in

Front Width

64.7 in

66.3 in

Rear Width

67.8 in

65 in

Wheelbase

110.2 in

103.5 in

Interior Space

Seating Capacity

2 seater

Front Seat Leg Room

43.1 in

N/A

Front Seat Headroom

38.7 in

38 in

Front Seat Shoulder Room

56.7 in

58.4 in

Cargo Space

Trunk Volume

3.1 ft³

5.8 ft³

Steering

Steering Type

Rack-Pinion

Turning Diameter

40.4 ft

41 ft

Wheels

Wheels Type

Aluminum Wheels

Front Wheel Size

20" x 7.5"

19" x 9"

Rear Wheel Size

20" x 8.5"

19" x 11"

Suspension

Front Suspension

Double Wishbone

Rear Suspension

Multi-Link

Double Wishbone

Tires

Front Tire

P215/45YR20

P255/35ZR19

Rear Tire

P245/40YR20

P295/30ZR19

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
Jupiter Red

Optional Exterior Colors

Crystal White Pearl Metallic w/BMW i Frozen Blue
Crystal White Pearl Metallic w/Frozen Gray Accent

Brilliant Blue Metallic, Late Availability
Cirrus Silver Metallic
Obsidian Black Metallic
Selenite Grey Metallic
designo Diamond White
designo Brilliant Blue Magno, Late Availability
designo Graphite Grey Magno
designo Selenite Grey 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 Dalbergia Brown, Natural Leather/Cloth Upholstery

Black, MB-Tex/DINAMICA Upholstery
Black/Black w/Diamond St, Exclusive 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

Infotainment

HD Radio

Not Available

Standard

Bluetooth Connection

Standard

Hard Disk Drive Media Storage

Standard

Premium Sound System

Standard

Optional

Satellite Radio

Standard

Smart Device Integration

Standard

Auxiliary Audio Input

Standard

MP3 Player

Standard

Interior Trim

Bucket Seats

Standard

Cloth Seats

Standard

Not Available

Leather Seats

Standard

Leather Steering Wheel

Standard

Premium Synthetic Seats

Not Available

Standard

Comfort

Head-Up Display

Standard

Not Available

Navigation System

Standard

Steering Wheel Audio Controls

Standard

Power Mirror(s)

Standard

A/C

Standard

Adaptive Cruise Control

Not Available

Standard

Automatic Parking

Not Available

Standard

Climate Control

Standard

Cooled Front Seat(s)

Not Available

Optional

Cruise Control

Standard

Hands-Free Liftgate

Not Available

Optional

Heated Front Seat(s)

Standard

Keyless Entry

Standard

Multi-Zone A/C

Standard

Power Driver Seat

Standard

Power Passenger Seat

Standard

Remote Trunk Release

Not Available

Optional

Seat Memory

Not Available

Standard

Universal Garage Door Opener

Standard

Keyless Start

Standard

Optional

Telematics

Standard

Safety Features

Back-Up Camera

Standard

Cross-Traffic Alert

Standard

Not Available

Rear Parking Aid

Standard

Not Available

Blind Spot Monitor

Standard

Optional

Lane Departure Warning

Standard

Optional

Lane Keeping Assist

Not Available

Optional

ABS

Standard

Tire Pressure Monitor

Standard

Brake Assist

Standard

Stability Control

Standard

Traction Control

Standard

Airbags

Driver Air Bag

Standard

Front Head Air Bag

Not Available

Standard

Front Side Air Bag

Standard

Knee Air Bag

Standard

Passenger Air Bag

Standard

Warranty Summary

Basic

4 Years / 50,000 Miles

Corrosion

12 Years / Unlimited Miles

4 Years / 50,000 Miles

Drivetrain

4 Years / 50,000 Miles

Hybrid/Electric Components

8 Years / 100,000 Miles

N/A

Maintenance

3 Years / 36,000 Miles

N/A

Roadside Assistance

4 Years / Unlimited Miles

4 Years / 50,000 Miles

Compare BMW i8 Roadster vs Mercedes-AMG GT Roadster

Overview

Photos

Performance Specs

Engine and Transmission

Weight and Towing

Fuel and MPG

Fuel Economy

Emissions

Fuel Tank

Battery Range & Charge Times

Dimensions and Measurement

Exterior Dimensions

Interior Space

Cargo Space

Wheels and Suspension

Steering

Wheels

Suspension

Tires

Colors and Materials

Standard Exterior Colors

Optional Exterior Colors

Standard Interior Materials

Optional Interior Materials

Features and Options

Infotainment

Interior Trim

Comfort

Safety

Safety Features

Airbags

Warranty

Warranty Summary