Compare 2020 Acura RLX vs 2020 Cadillac CT6 vs 2020 Kia K900

2020 Acura RLX
#19 in Luxury Mid-Size Cars
X
2020 Cadillac CT6
#13 in Luxury Large Cars
X
2020 Kia K900
#9 in Luxury Large Cars
X
Select style
Sedan Sport Hybrid w/Advance Pkg
Style MPG City MPG Hwy Invoice MSRP
RLX Sedan Sport Hybrid w/Advance Pkg 28 29 $57,432 $61,900
RLX Sedan w/Technology Pkg 20 29 $50,946 $54,900
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
Select style
V6 Luxury
Style MPG City MPG Hwy Invoice MSRP
K900 V6 Luxury 18 25 $55,888 $59,900
Pricing
Invoice Price
$57,432
$56,045
$55,888
Manufacturer Suggested Retail Price
$61,900
$58,995
$59,900
Monthly Payment Estimate
$1032 / month
$983 / month
$998 / month
The Car Connection's Take
TCC Rating
6.3
6.4
7.2
TCC’s Bottom Line
The 2020 Acura RLX’s familiar shape hides a forward-thinking powertrain. In its final year, the 2020 Cadillac CT6 is a tempting look at what could have been from the luxury brand. The 2020 Kia K900 piles luxurious fittings and features into a stylish sedan body, and tops it with an excellent warranty.
TCC Likes
TCC Dislikes
Fuel Economy
City
28 mpg 18 mpg 18 mpg
Highway
29 mpg 27 mpg 25 mpg
Vehicle
EPA Classification
Midsize Cars Large Cars Large Cars
Number of Passenger Doors
- 4 -
Interior Dimensions
Passenger Volume (ft³)
102.1 110 110.3
Front Hip Room (in)
55.9 55.9 -
Second Leg Room (in)
38.8 40.4 36.6
Front Head Room (in)
37.6 40.2 41.1
Passenger Capacity
5 5 5
Second Hip Room (in)
54.5 53.5 -
Front Shoulder Room (in)
59.6 58.3 59
Second Head Room (in)
36.9 38 38
Second Shoulder Room (in)
57 56.2 57.2
Front Leg Room (in)
42.3 46.4 45.7
Exterior Dimensions
Track Width, Rear (in)
64.2 64 -
Wheelbase (in)
112.2 122.4 122.2
Width, Max w/o mirrors (in)
74.4 74 75.4
Track Width, Front (in)
64.3 63.4 -
Min Ground Clearance (in)
3.8 - TBD - 5.3
Length, Overall (in)
198.1 205.8 201.6
Height, Overall (in)
57.7 58 58.7
Liftover Height (in)
- - TBD - -
Cargo Area Dimensions
Trunk Volume (ft³)
12 15.8 15.3
Brakes
Rear Brake Rotor Diam x Thickness (in)
12.2 12.4 x 0.9 13.4
Brake Type
4-Wheel Disc Pwr 4-Wheel Disc
Rear Drum Diam x Width (in)
NA NA NA
Disc - Front (Yes or )
Yes Yes Yes
Front Brake Rotor Diam x Thickness (in)
13 13.6 x 1.2 14.2
Drum - Rear (Yes or )
NA NA NA
Brake ABS System
4-Wheel 4-Wheel 4-Wheel
Disc - Rear (Yes or )
Yes Yes Yes
Fuel Tank
Fuel Tank Capacity, Approx (gal)
15.1 19.5 20.3
Steering
Turning Diameter - Curb to Curb (ft)
40.5 - TBD - -
Steering Type
Rack-Pinion Electric Rack & Pinion Rack-Pinion
Steering Ratio (:1), Overall
- - TBD - -
Lock to Lock Turns (Steering)
- - TBD - -
Turning Diameter - Wall to Wall (ft)
- - TBD - -
Tires
Rear Tire Size
P245/40WR19 P245/45R19 P275/40VR19
Rear Tire Order Code
NA RJZ NA
Front Tire Size
P245/40WR19 P245/45R19 P245/45VR19
Spare Tire Size
NA T135/70R18 Compact
Front Tire Order Code
NA RJZ NA
Spare Tire Order Code
NA ZCD NA
Weight Information
Base Curb Weight (lbs)
4380 5070 4662
Wheels
Front Wheel Material
Aluminum Aluminum Aluminum
Spare Wheel Material
NA Steel Aluminum
Front Wheel Size (in)
19 X 8 19 x - TBD - 19 X 8.5
Spare Wheel Size (in)
NA 18 x - TBD - Compact
Rear Wheel Material
Aluminum Aluminum Aluminum
Rear Wheel Size (in)
19 X 8 19 x - TBD - 19 X 9.5
Engine
SAE Net Torque @ RPM
341 @ 4700 284 @ 5300 376 @ 1300
Engine Order Code
NA LGX NA
Displacement
3.5 L/212 3.6L/- TBD - 3.3 L/204
SAE Net Horsepower @ RPM
377 @ 6500 335 @ 6800 365 @ 6000
Engine Type
Gas/Electric V-6 Gas V6 Twin Turbo Premium Unleaded V-6
Fuel System
Gasoline Direct Injection Direct Injection Gasoline Direct Injection
Mileage
Fuel Economy Est-Combined (MPG)
28 21 21
EPA Fuel Economy Est - Hwy (MPG)
29 27 25
EPA Fuel Economy Est - City (MPG)
28 18 18
Transmission
First Gear Ratio (:1)
4.40 4.69 3.67
Final Drive Axle Ratio (:1)
3.58 - TBD - 3.54
Third Gear Ratio (:1)
2.03 2.14 1.61
Trans Type
7 10 8
Drivetrain
All Wheel Drive All Wheel Drive All Wheel Drive
Fifth Gear Ratio (:1)
1.14 1.52 1.00
Trans Description Cont. Again
NA NA NA
Reverse Ratio (:1)
3.66 4.86 2.27
Second Gear Ratio (:1)
2.75 2.98 2.40
Trans Order Code
NA MHS NA
Fourth Gear Ratio (:1)
1.55 1.77 1.19
Trans Description Cont.
Auto-Shift Manual w/OD Automatic Automatic w/OD
Seventh Gear Ratio (:1)
0.62 1.00 0.64
Sixth Gear Ratio (:1)
0.84 1.27 0.83
Clutch Size (in)
- NA -
Ninth Gear Ratio (:1)
- 0.69 -
Eighth Gear Ratio (:1)
- 0.85 0.57
Tenth Gear Ratio (:1)
- 0.63 -
Summary
Vehicle Name
Acura RLX Cadillac CT6 Kia K900
Body Style
SH-AWD Sedan Sedan Sedan
Suspension
Suspension Type - Rear (Cont.)
Multi-Link NA Multi-Link
Suspension Type - Front
Double Wishbone Multi-Link Multi-Link
Suspension Type - Front (Cont.)
Double Wishbone NA Multi-Link
Suspension Type - Rear
Multi-Link Independent Multi-Link
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
6.3 8.4 8.5
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 - 740
Maximum Alternator Capacity (amps)
- - TBD - 150
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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