BMW i8 vs. Acura RLX

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 Black

Key Specs

Kelley Blue Book Value

Kelley Blue Book
$147,500
$54,900

Expert Rating

Owner Reviews

Owner Reviews

Horsepower

Horsepower
369 hp
310 hp

Bluetooth

Bluetooth

BackUp Camera

BackUp Camera

Engine Type

Engine Type
1.5L DOHC Turbo 3
3.5L 24

Interior Features

Alarm

Alarm

BackUp Camera

BackUp Camera

Keyless Entry

Keyless Entry

Universal Garage Door Opener

Universal Garage Door Opener

Rain Sensing Wipers

Rain Sensing Wipers

Heated Mirrors

Heated Mirrors

Power Mirrors

Power Mirrors

Steering Wheel Controls

Steering Wheel Controls

Cruise Control

Cruise Control

Power Windows

Power Windows

Rear Defrost

Rear Defrost

Premium Sound System

Premium Sound System

Power Steering

Power Steering

Front Leg Room

Front Leg Room
43.1 in.
42.3 in.

Front Head Room

Front Head Room
38.7 in.
37.6 in.

Rear Leg Room

Rear Leg Room
28.2 in.
38.8 in.

Second Head Room

Second Head Room
32.4 in.
36.9 in.

Trunk Volume

Trunk Volume
5.4 cu. ft.
14.9 cu. ft.

Bluetooth

Bluetooth

MP3 Player

MP3 Player

Satellite Radio

Satellite Radio

Smart Device Integration

Smart Device Integration

AUX Input

AUX Input

Climate Control

Climate Control

Dual Zone

Dual Zone

Navigation System

Navigation System

Passengers

Passengers
4
5

Power Driver Seat

Power Driver Seat

Power Passenger Seat

Power Passenger Seat

Heated Front Seats

Heated Front Seats

Exterior Features

Standard Wheels

Standard Wheels
Aluminum

Power Folding Mirror

Power Folding Mirror

Rear Spoiler

Rear Spoiler
Optional
Optional

Tire Width

Tire Width
P215/45YR20
P245/40R19 - P245/40WR19

Wheelbase

Wheelbase
110.2 in.
112.2 in.

Turning Radius

Turning Radius
40.4 ft.
40.5 ft.

Length

Length
184.9 in.
198.1 in.

Width

Width
76.5 in.
74.4 in.

Mechanical Specs

Weight

Weight
3501 lbs.
3977 lbs.

Horsepower

Horsepower
369 hp
310 hp

Torque

Torque
420 ft. lbs.
272 ft. lbs.

4wheel Disc Brakes

4wheel Disc Brakes

Performance Tires

Performance Tires

Engine Cylinders

Engine Cylinders
3 Cylinder
V6 Cylinder

Drivetrain

Drivetrain
All Wheel Drive
Front Wheel Drive

Fuel Capacity

Fuel Capacity
11.1 gal.
18.5 gal.

Combined

Combined
27 mpg
25 mpg

City

City
27 mpg
20 mpg

Highway

Highway
27 mpg
29 mpg

Safety Features

Spare Tire

Spare Tire

ABS Brakes

ABS Brakes

Automatic Headlights

Automatic Headlights

Tire Pressure Monitor System

Tire Pressure Monitor System

Stability Control

Stability Control

Traction Control

Traction Control

Automated Emergency Braking

Automated Emergency Braking

Blind Spot Monitor

Blind Spot Monitor

Lane Departure Warning

Lane Departure Warning

Cross Traffic Alert

Cross Traffic Alert

Driver Airbag

Driver Airbag

Passenger Airbag

Passenger Airbag

Front Side Airbag

Front Side Airbag

Front Head Airbag

Front Head Airbag

Rear Head Airbag

Rear Head Airbag

Passenger Airbag Sensor

Passenger Airbag Sensor

Knee Airbag

Knee Airbag

Tech Specs

Vehicle Name

Vehicle Name
BMW i8
Acura RLX

Body Style

Body Style
Coupe
Sedan

Drivetrain

Drivetrain
All Wheel Drive
Front Wheel Drive

EPA Classification

EPA Classification
Subcompact Cars
Mid-Size Cars

Passenger Capacity

Passenger Capacity
4
5

Passenger Volume

Passenger Volume
81 ft³.
102.1 ft³.

Base Curb Weight

Base Curb Weight
3501 lbs.
3977 lbs.

Fuel Economy Est-Combined

Fuel Economy Est-Combined
27 mpg.
23 mpg.

Engine Type

Engine Type
Intercooled Turbo Gas/Electric I-3
Premium Unleaded V-6

Displacement

Displacement
1.5 L/91
3.5 L/212

Fuel System

Fuel System
Gasoline Direct Injection
Gasoline Direct Injection

Trans Type

Trans Type
6
10

Trans Description Cont.

Trans Description Cont.
Automatic w/OD
Automatic w/OD

First Gear Ratio (:1)

First Gear Ratio (:1)
4.46
5.25

Second Gear Ratio (:1)

Second Gear Ratio (:1)
2.51
3.27

Third Gear Ratio (:1)

Third Gear Ratio (:1)
1.56
2.19

Fourth Gear Ratio (:1)

Fourth Gear Ratio (:1)
1.14
1.60

Fifth Gear Ratio (:1)

Fifth Gear Ratio (:1)
0.85
1.30

Sixth Gear Ratio (:1)

Sixth Gear Ratio (:1)
0.67
1.00

Reverse Ratio (:1)

Reverse Ratio (:1)
3.19
3.97

Final Drive Axle Ratio (:1)

Final Drive Axle Ratio (:1)
3.68
3.61

Suspension Type - Front

Suspension Type - Front
Double Wishbone
Double Wishbone

Suspension Type - Rear

Suspension Type - Rear
Multi-Link
Multi-Link

Suspension Type - Front (Cont.)

Suspension Type - Front (Cont.)
Double Wishbone
Double Wishbone

Suspension Type - Rear (Cont.)

Suspension Type - Rear (Cont.)
Multi-Link
Multi-Link

Front Tire Size

Front Tire Size
P215/45YR20
P245/40R19 - P245/40WR19

Rear Tire Size

Rear Tire Size
P245/40YR20
P245/40R19 - P245/40WR19

Front Wheel Size

Front Wheel Size
20 X 7.5 in.
19 - 19 X 8 in.

Rear Wheel Size

Rear Wheel Size
20 X 8.5 in.
19 - 19 X 8 in.

Front Wheel Material

Front Wheel Material
Forged Aluminum
Aluminum

Rear Wheel Material

Rear Wheel Material
Forged Aluminum
Aluminum

Steering Type

Steering Type
Rack-Pinion
Rack-Pinion

Turning Diameter - Curb to Curb

Turning Diameter - Curb to Curb
40.4 ft.
40.5 ft.

Brake Type

Brake Type
4-Wheel Disc
4-Wheel Disc

Brake ABS System

Brake ABS System
4-Wheel
4-Wheel

Disc - Front

Disc - Front
Yes
Yes

Disc - Rear

Disc - Rear
Yes
Yes

Front Brake Rotor Diam x Thickness

Front Brake Rotor Diam x Thickness
13.4 in.
12.3 in.

Rear Brake Rotor Diam x Thickness

Rear Brake Rotor Diam x Thickness
13 in.
12.2 in.

Fuel Tank Capacity, Approx

Fuel Tank Capacity, Approx
11.1 gal.
18.5 gal.

Front Head Room

Front Head Room
38.7 in.
37.6 in.

Front Leg Room

Front Leg Room
43.1 in.
42.3 in.

Front Shoulder Room

Front Shoulder Room
56.7 in.
59.6 in.

Second Head Room

Second Head Room
32.4 in.
36.9 in.

Second Leg Room

Second Leg Room
28.2 in.
38.8 in.

Second Shoulder Room

Second Shoulder Room
49.6 in.
57 in.

Wheelbase

Wheelbase
110.2 in.
112.2 in.

Length, Overall

Length, Overall
184.9 in.
198.1 in.

Width, Max w/o mirrors

Width, Max w/o mirrors
76.5 in.
74.4 in.

Height, Overall

Height, Overall
50.8 in.
57.7 in.

Track Width, Front

Track Width, Front
64.7 in.
64.3 in.

Track Width, Rear

Track Width, Rear
67.8 in.
64.2 in.

Trunk Volume

Trunk Volume
5.4 ft³.
14.9 ft³.

Model Group

Model Group
i8
RLX

Vehicle Segment

Vehicle Segment
Luxury High
Luxury High

Vehicle Type

Vehicle Type
Coupe
Sedan

Engine Displacement Units

Engine Displacement Units
1.5
3.5

Engine Camshaft

Engine Camshaft
DOHC
SOHC

Engine Block Type

Engine Block Type
aluminum
aluminum

Engine Cylinder Count

Engine Cylinder Count
3
6

Engine Valve Count

Engine Valve Count
4
4