Your car comparison

Here's how the 2018 Audi S6 and the 2018 BMW 650 Gran Coupe measure up.
4.0 TFSI Premium Plus
$71,900
Starting MSRP
650i Gran Coupe
$93,000
Starting MSRP

Overview

Door
4-door 4-door -
Seats
5 5 -
Engine

450.0-hp, 4.0-liter, 8 Cylinder Engine(Gasoline Fuel)

445.0-hp, 4.4-liter, 8 Cylinder Engine(Gasoline Fuel)

-
Combined MPG
18 20 -
Size
194.4" length, 56.8" height 192.8" length, 53.7" height -
Drivetrain
All Wheel Drive Rear Wheel Drive -

Exterior color

Exterior color

-

Interior color

Interior color

Medium Light Stone

Black

Flint Gray

Cognac

Imola Red

Black

Opal White

Vermillion Red

Canyon Brown

Opal White / Amaro Brown

Platinum

Amarone

Ivory White / Black

Cognac / Black

Champagne

-

Transmissions

Transmissions

7-Speed A/T

A/T

Transmission w/Dual Shift Mode

8-Speed A/T

A/T

Transmission w/Dual Shift Mode

-

Vehicle

EPA Classification
Midsize Cars Compact Cars -

Wheels

Rear Wheel Size
20 X 8.5 in 19 X 8.5 in -
Front Wheel Material
Aluminum Aluminum -
Front Wheel Size
20 X 8.5 in 19 X 8.5 in -
Rear Wheel Material
Aluminum Aluminum -
Spare Wheel Material
Steel N/A -
Spare Wheel Size
Compact in N/A -

Electrical

Maximum Alternator Capacity (amps)
210 210 -
Cold Cranking Amps @ 0° F (Primary)
N/A N/A -

Engine

SAE Net Horsepower @ RPM
450 @ 5800 445 @ 5500 -
SAE Net Torque @ RPM
406 @ 1400 480 @ 1750 -
Displacement
4.0 L/244 4.4 L/268 -
Engine Type
Twin Turbo Premium Unleaded V-8 Twin Turbo Premium Unleaded V-8 -

Mileage

Estimated Battery Range
N/A N/A -
Cruising Range - City
316.80 mi 314.50 mi -
EPA Fuel Economy Est - City
16 MPG 17 MPG -
EPA MPG Equivalent - Combined
N/A N/A -
EPA MPG Equivalent - Hwy
N/A N/A -
EPA MPG Equivalent - City
N/A N/A -
Cruising Range - Hwy
475.20 mi 462.50 mi -
EPA Fuel Economy Est - Hwy
24 MPG 25 MPG -
Fuel Economy Est-Combined
18 MPG 20 MPG -

Suspension

Suspension Type - Rear (Cont.)
Multi-Link Multi-Link -
Suspension Type - Rear
Multi-Link Multi-Link -
Suspension Type - Front
Multi-Link Double Wishbone -
Suspension Type - Front (Cont.)
Multi-Link Double Wishbone -

Brakes

Brake Type
4-Wheel Disc 4-Wheel Disc -
Disc - Front (Yes or )
Yes Yes -
Drum - Rear (Yes or )
N/A N/A -
Front Brake Rotor Diam x Thickness
15.7 in 14.7 in -
Rear Brake Rotor Diam x Thickness
14 in 13.6 in -
Brake ABS System
4-Wheel 4-Wheel -
Disc - Rear (Yes or )
Yes Yes -
Brake ABS System (Second Line)
N/A N/A -

Fuel Tank

Fuel Tank Capacity, Approx
19.8 gal 18.5 gal -
Aux Fuel Tank Capacity, Approx
N/A N/A -

Steering

Lock to Lock Turns (Steering)
N/A N/A -
Steering Type
Rack-Pinion Rack-Pinion -
Turning Diameter - Wall to Wall
N/A N/A -
Turning Diameter - Curb to Curb
39 ft 39.2 ft -
Steering Ratio (:1), Overall
N/A N/A -

Tires

Front Tire Size
P255/35YR20 P245/40VR19 -
Spare Tire Size
Compact N/A -
Rear Tire Size
P255/35YR20 P245/40VR19 -

Trailering

Dead Weight Hitch - Max Tongue Wt.
N/A N/A -
Dead Weight Hitch - Max Trailer Wt.
N/A N/A -
Wt Distributing Hitch - Max Trailer Wt.
N/A N/A -
Wt Distributing Hitch - Max Tongue Wt.
N/A N/A -

Weight Information

Base Curb Weight
4497 lbs 4430 lbs -

Dimensions

Front Head Room
37.2 in 40.6 in -
Track Width, Front
63.6 in 63.2 in -
Length, Overall
194.4 in 197.2 in -
Second Hip Room
N/A N/A -
Wheelbase
114.8 in 116.9 in -
Front Leg Room
41.3 in 42.1 in -
Passenger Volume
98 ft³ N/A -
Passenger Capacity
5 5 -
Second Head Room
37.8 in 37 in -
Front Shoulder Room
57.5 in 56.7 in -
Height, Overall
56.8 in 54.8 in -
Width, Max w/o mirrors
73.8 in 74.6 in -
Liftover Height
N/A N/A -
Trunk Volume
14.1 ft³ 16.2 ft³ -
Min Ground Clearance
N/A 5 in -
Track Width, Rear
63.2 in 65.8 in -
Second Shoulder Room
56.3 in 54.6 in -
Front Hip Room
N/A N/A -
Second Leg Room
37.4 in 35.3 in -

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