2015 Acura RLX vs 2015 Kia K900 - The Car Connection

2015 Acura RLX

2015 Kia K900

Select style

4-Door Sedan

Style	MPG City	MPG Hwy	Invoice	MSRP
RLX 4-Door Sedan	20	31	$44,324	$48,450
RLX 4-Door Sedan Advance Pkg	20	31	$55,183	$60,450
RLX 4-Door Sedan Krell Audio Pkg	20	31	$52,016	$56,950
RLX 4-Door Sedan Navigation	20	31	$46,586	$50,950
RLX 4-Door Sedan Tech Pkg	20	31	$49,753	$54,450

Select style

4-Door Sedan Luxury

Style	MPG City	MPG Hwy	Invoice	MSRP
K900 4-Door Sedan Luxury	15	23	$55,592	$59,900
K900 4-Door Sedan Premium	15	23	$50,581	$54,500

Show Only Differences

Pricing

Invoice Price

$44,324

$55,592

Manufacturer Suggested Retail Price

$48,450

$59,900

Monthly Payment Estimate

$808 / month

$998 / month

The Car Connection's Take

TCC Rating

8.4

Read Our Full Review

8.0

Read Our Full Review

TCC’s Bottom Line

The 2015 Acura RLX is an understated luxury full-sizer that puts emphasis on unique technical solutions instead of all-out style and flair.

The 2015 Kia K900 reaches for the luxury stars--and grabs a little Lexus and old-school Cadillac, though it falls well short of Audi.

TCC Likes

Smooth V-6 growl
Gas mileage estimates lead the class
Interesting new safety features

Comfortable interior
Rear-seat room
Quiet ride

TCC Dislikes

Design isn't distinctive
Rear-wheel steering is a pretty exotic solution
Multiple screens, multiple guesses?

Unremarkable styling
Few distinguishing features
Acceleration lag

Fuel Economy

City

20 mpg

15 mpg

Highway

31 mpg

23 mpg

Vehicle

EPA Classification

Midsize Cars

Large Cars

Interior Dimensions

Passenger Volume (ft³)

102.1

110.8

Second Shoulder Room (in)

57.2

Front Leg Room (in)

42.3

45.9

Front Hip Room (in)

55.9

Passenger Capacity

Second Leg Room (in)

38.8

38.2

Front Head Room (in)

37.6

40.2

Second Hip Room (in)

54.5

55.7

Front Shoulder Room (in)

59.6

59.1

Second Head Room (in)

36.9

37.6

Exterior Dimensions

Height, Overall (in)

57.7

58.5

Track Width, Rear (in)

64.2

64.1

Wheelbase (in)

112.2

119.9

Width, Max w/o mirrors (in)

74.4

74.8

Track Width, Front (in)

64.3

63.8

Min Ground Clearance (in)

3.8

5.7

Length, Overall (in)

196.1

200.6

Cargo Area Dimensions

Trunk Volume (ft³)

14.9

15.9

Brakes

Disc - Rear (Yes or )

Yes

Rear Brake Rotor Diam x Thickness (in)

12.2

12.4

Brake Type

4-Wheel Disc

Rear Drum Diam x Width (in)

Disc - Front (Yes or )

Yes

Front Brake Rotor Diam x Thickness (in)

12.3

14.2

Drum - Rear (Yes or )

Brake ABS System

4-Wheel

Fuel Tank

Fuel Tank Capacity, Approx (gal)

18.5

19.8

Steering

Steering Type

Rack-Pinion

Turning Diameter - Curb to Curb (ft)

40.5

37.5

Tires

Spare Tire Order Code

Rear Tire Size

P245/45VR18

P275/40VR19

Rear Tire Order Code

Front Tire Size

P245/45VR18

P245/45VR19

Spare Tire Size

Compact

Front Tire Order Code

Weight Information

Base Curb Weight (lbs)

3933

4555

Wheels

Rear Wheel Size (in)

18 X 8

19 X 9

Front Wheel Material

Aluminum

Spare Wheel Material

Aluminum

Front Wheel Size (in)

18 X 8

19 X 9

Spare Wheel Size (in)

Compact

Rear Wheel Material

Aluminum

Electrical

Maximum Alternator Capacity (amps)

150

180

Cold Cranking Amps @ 0° F (Primary)

740

Engine

SAE Net Horsepower @ RPM

310 @ 6500

420 @ 6400

Engine Type

Premium Unleaded V-6

Premium Unleaded V-8

Fuel System

Gasoline Direct Injection

SAE Net Torque @ RPM

272 @ 4500

376 @ 5000

Engine Order Code

Displacement

3.5 L/212

5.0 L/307

Mileage

EPA Fuel Economy Est - Hwy (MPG)

EPA Fuel Economy Est - City (MPG)

Fuel Economy Est-Combined (MPG)

Transmission

Trans Description Cont. Again

Reverse Ratio (:1)

2.26

2.47

Second Gear Ratio (:1)

2.11

2.47

Trans Order Code

Drivetrain

Front Wheel Drive

Rear Wheel Drive

Fourth Gear Ratio (:1)

1.06

1.18

Trans Description Cont.

Automatic w/OD

Sixth Gear Ratio (:1)

0.56

0.83

First Gear Ratio (:1)

3.38

3.79

Final Drive Axle Ratio (:1)

4.25

3.54

Third Gear Ratio (:1)

1.49

1.61

Trans Type

Fifth Gear Ratio (:1)

0.76

1.00

Seventh Gear Ratio (:1)

0.65

Eighth Gear Ratio (:1)

0.57

Summary

Vehicle Name

Acura RLX

Kia K900

Body Style

Sedan

Suspension

Suspension Type - Rear

Multi-Link

Suspension Type - Rear (Cont.)

Multi-Link

Suspension Type - Front

Double Wishbone

Multi-Link

Suspension Type - Front (Cont.)

Double Wishbone

Multi-Link

Emissions

EPA Greenhouse Gas Score

6.0

Tons/yr of CO2 Emissions @ 15K mi/year

7.4

9.8

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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