Compare 2020 Audi A6 vs 2020 BMW 5-Series vs 2020 Cadillac CT6

2020 Audi A6
X
2020 BMW 5-Series
X
2020 Cadillac CT6
#13 in Luxury Large Cars
X
Select style
Premium 45 TFSI quattro
Style MPG City MPG Hwy Invoice MSRP
A6 Premium 45 TFSI quattro 24 32 $51,608 $54,900
A6 Premium 55 TFSI quattro 22 29 $56,212 $59,800
A6 Premium Plus 45 TFSI quattro 24 32 $51,608 $54,900
A6 Premium Plus 55 TFSI quattro 22 29 $56,212 $59,800
A6 Prestige 45 TFSI quattro 24 32 $51,608 $54,900
A6 Prestige 55 TFSI quattro 22 29 $56,212 $59,800
S6 2.9 TFSI Premium Plus 18 28 $69,468 $73,900
S6 2.9 TFSI Prestige 18 28 $69,468 $73,900
Select style
530e iPerformance Plug-In Hybrid
Style MPG City MPG Hwy Invoice MSRP
5 Series 530e iPerformance Plug-In Hybrid N/A N/A $50,625 $53,900
5 Series 530e xDrive iPerformance Plug-In Hybrid N/A N/A $52,765 $56,200
5 Series 530i Sedan 25 33 $50,625 $53,900
5 Series 530i xDrive Sedan 24 31 $52,765 $56,200
5 Series 540i Sedan 22 30 $55,790 $59,450
5 Series 540i xDrive Sedan 22 29 $57,930 $61,750
5 Series M550i xDrive Sedan 18 25 $71,785 $76,650
M5 Competition Sedan 15 21 $102,800 $110,000
M5 Sedan 15 21 $96,010 $102,700
Select style
4-Door Sedan 3.6L Luxury
Style MPG City MPG Hwy Invoice MSRP
CT6 4-Door Sedan 3.6L Luxury 18 27 $56,045 $58,995
CT6 4-Door Sedan 3.6L Premium Luxury 18 27 $70,770 $74,495
CT6 4-Door Sedan 4.2L Turbo Platinum 14 25 $91,670 $96,495
CT6-V 4-Door Sedan 14 25 $90,150 $94,895
Pricing
Invoice Price
$51,608
$50,625
$56,045
Manufacturer Suggested Retail Price
$54,900
$53,900
$58,995
Monthly Payment Estimate
$915 / month
$898 / month
$983 / month
The Car Connection's Take
TCC Rating
7.2
7.3
6.4
TCC’s Bottom Line
The 2020 Audi A6 is as good as mid-size luxury sedans get—for those still shopping sedans. The 2020 BMW 5-Series is the goldilocks mid-sizer with a roundel on the hood: comfortable, powerful, and luxurious. In its final year, the 2020 Cadillac CT6 is a tempting look at what could have been from the luxury brand.
TCC Likes
TCC Dislikes
Fuel Economy
City
24 mpg Coming Soon 18 mpg
Highway
32 mpg Coming Soon 27 mpg
Vehicle
EPA Classification
Midsize Cars Compact Cars Large Cars
Number of Passenger Doors
- - 4
Interior Dimensions
Second Leg Room (in)
37.4 36.5 40.4
Front Leg Room (in)
41.3 41.4 46.4
Passenger Capacity
5 5 5
Second Head Room (in)
38.1 37.5 38
Second Shoulder Room (in)
56.5 55.9 56.2
Front Head Room (in)
38 38.8 40.2
Front Shoulder Room (in)
57.8 58.7 58.3
Passenger Volume (ft³)
- 98.8 110
Second Hip Room (in)
- - 53.5
Front Hip Room (in)
- - 55.9
Exterior Dimensions
Height, Overall (in)
57.4 58.4 58
Track Width, Rear (in)
63.7 64.2 64
Wheelbase (in)
115.1 117.1 122.4
Width, Max w/o mirrors (in)
74.3 73.5 74
Track Width, Front (in)
64.2 63.1 63.4
Min Ground Clearance (in)
4.2 - - TBD -
Length, Overall (in)
194.4 194.6 205.8
Liftover Height (in)
- - - TBD -
Cargo Area Dimensions
Trunk Volume (ft³)
13.7 14.5 15.8
Brakes
Drum - Rear (Yes or )
NA NA NA
Brake ABS System
4-Wheel 4-Wheel 4-Wheel
Disc - Rear (Yes or )
Yes Yes Yes
Rear Brake Rotor Diam x Thickness (in)
13 - 12.4 x 0.9
Brake Type
4-Wheel Disc 4-Wheel Disc Pwr
Rear Drum Diam x Width (in)
NA - NA
Disc - Front (Yes or )
Yes Yes Yes
Front Brake Rotor Diam x Thickness (in)
13.3 - 13.6 x 1.2
Fuel Tank
Fuel Tank Capacity, Approx (gal)
19.3 12.1 19.5
Steering
Steering Type
Rack-Pinion Rack-Pinion Electric Rack & Pinion
Turning Diameter - Curb to Curb (ft)
36.4 39.5 - TBD -
Steering Ratio (:1), Overall
- - - TBD -
Lock to Lock Turns (Steering)
- - - TBD -
Turning Diameter - Wall to Wall (ft)
- - - TBD -
Tires
Spare Tire Size
Compact NA T135/70R18
Front Tire Order Code
NA NA RJZ
Spare Tire Order Code
NA NA ZCD
Rear Tire Size
P245/45HR19 P245/45HR18 P245/45R19
Rear Tire Order Code
NA NA RJZ
Front Tire Size
P245/45HR19 P245/45HR18 P245/45R19
Weight Information
Base Curb Weight (lbs)
4101 4266 5070
Wheels
Rear Wheel Material
Aluminum Aluminum Aluminum
Rear Wheel Size (in)
19 X 8.5 18 X 8 19 x - TBD -
Front Wheel Material
Aluminum Aluminum Aluminum
Spare Wheel Material
Steel NA Steel
Front Wheel Size (in)
19 X 8.5 18 X 8 19 x - TBD -
Spare Wheel Size (in)
Compact NA 18 x - TBD -
Engine
Engine Type
Intercooled Turbo Gas/Electric I-4 Intercooled Turbo Gas/Electric I-4 Gas V6
Fuel System
Gasoline Direct Injection Gasoline Direct Injection Direct Injection
SAE Net Torque @ RPM
273 @ 1600 310 284 @ 5300
Engine Order Code
NA NA LGX
Displacement
2.0 L/121 2.0 L/122 3.6L/- TBD -
SAE Net Horsepower @ RPM
248 @ 4300 248 @ 4000 335 @ 6800
Mileage
EPA Fuel Economy Est - City (MPG)
24 - 18
Fuel Economy Est-Combined (MPG)
27 27 21
EPA Fuel Economy Est - Hwy (MPG)
32 - 27
Estimated Battery Range (mi)
- 21 -
EPA MPG Equivalent - Combined
- 69 -
Transmission
Second Gear Ratio (:1)
2.19 3.14 2.98
Trans Order Code
8Y 2TE MHS
Seventh Gear Ratio (:1)
0.39 0.84 1.00
Fourth Gear Ratio (:1)
1.06 1.67 1.77
Trans Description Cont.
Auto-Shift Manual w/OD Automatic w/OD Automatic
Drivetrain
All Wheel Drive Rear Wheel Drive All Wheel Drive
Sixth Gear Ratio (:1)
0.51 1.00 1.27
First Gear Ratio (:1)
3.19 4.71 4.69
Final Drive Axle Ratio (:1)
4.41 3.23 - TBD -
Third Gear Ratio (:1)
1.16 2.11 2.14
Trans Type
7 8 10
Fifth Gear Ratio (:1)
0.74 1.28 1.52
Trans Description Cont. Again
NA NA NA
Reverse Ratio (:1)
2.75 3.29 4.86
Eighth Gear Ratio (:1)
- 0.67 0.85
Clutch Size (in)
- - NA
Ninth Gear Ratio (:1)
- - 0.69
Tenth Gear Ratio (:1)
- - 0.63
Summary
Vehicle Name
Audi A6 BMW 5 Series Cadillac CT6
Body Style
quattro Sedan Sedan Sedan
Suspension
Suspension Type - Rear
Multi-Link Multi-Link Independent
Suspension Type - Rear (Cont.)
Multi-Link Multi-Link NA
Suspension Type - Front
Multi-Link Double Wishbone Multi-Link
Suspension Type - Front (Cont.)
Multi-Link Double Wishbone NA
Shock Absorber Diameter - Front (mm)
- - - TBD -
Stabilizer Bar Diameter - Front (in)
- - - TBD -
Shock Absorber Diameter - Rear (mm)
- - - TBD -
Stabilizer Bar Diameter - Rear (in)
- - - TBD -
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
6.6 - 8.4
Trailering
Dead Weight Hitch - Max Tongue Wt. (lbs)
- - N/A
Wt Distributing Hitch - Max Tongue Wt. (lbs)
- - N/A
Dead Weight Hitch - Max Trailer Wt. (lbs)
- - N/A
Wt Distributing Hitch - Max Trailer Wt. (lbs)
- - N/A
Cooling System
Total Cooling System Capacity (qts)
- - - TBD -
Electrical
Cold Cranking Amps @ 0° F (Primary)
- - - TBD -
Maximum Alternator Capacity (amps)
- - - TBD -
Crash Test Ratings
Overall Rating
- -
Overall Frontal Barrier Crash Rating
- -
Frontal Barrier Crash Rating Driver
- -
Frontal Barrier Crash Rating Passenger
- -
Overall Side Crash Rating
- -
Side Barrier Rating
- -
Side Barrier Rating Driver
- -
Side Barrier Rating Passenger Rear Seat
- -
Side Pole Rating Driver Front Seat
- -
Combined Side Rating Front Seat
- -
Combined Side Rating Rear Seat
- -
Rollover Rating
- -

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