Compare Kia K5 vs Kia Optima Hybrid vs Mazda 6 Sedan

Kia K5
2021 Kia K5
Select configuration:
$23,490
Starting Price (MSRP)
9.1
Kia K5 Full Review
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Kia Optima Hybrid
2020 Kia Optima Hybrid
Select configuration:
$29,310
Starting Price (MSRP)
7.9
Kia Optima Hybrid Full Review
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Mazda 6 Sedan
2021 Mazda 6 Sedan
Select configuration:
$24,325
Starting Price (MSRP)
N/A
Mazda 6 Sedan Full Review
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Overview

Engine
1.6-liter Turbo Inline-4 Gas
Engine
2.0-liter Inline-4 Hybrid
Engine
2.5-liter Inline-4 Gas
Transmission
8-Speed Automatic
Transmission
6-Speed Automatic
Transmission
6-Speed Automatic
Drivetrain
Front-Wheel Drive
Drivetrain
Front-Wheel Drive
Drivetrain
Front-Wheel Drive
Fuel Economy
City: 29 MPG
Hwy: 38 MPG
Fuel Economy
City: 40 MPG
Hwy: 45 MPG
Fuel Economy
City: 26 MPG
Hwy: 35 MPG
Fuel Tank Capacity
14.8 gallons
Fuel Tank Capacity
15.9 gallons
Fuel Tank Capacity
16.4 gallons
Seating Capacity
5 seater
Seating Capacity
5 seater
Seating Capacity
5 seater
Trunk Volume
16 ft³
Trunk Volume
13.4 ft³
Trunk Volume
14.7 ft³

Photos

82
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13
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Performance Specs

Engine and Transmission

Engine
1.6-liter Turbo Inline-4 Gas
2.0-liter Inline-4 Hybrid
2.5-liter Inline-4 Gas
Horsepower
180 hp @ 5500 rpm
192 hp @ 6000 rpm
187 hp @ 6000 rpm
Torque
195 lb-ft @ 1500 rpm
271 lb-ft @ 1770 rpm
186 lb-ft @ 4000 rpm
Transmission
8-Speed Automatic
6-Speed Automatic
6-Speed Automatic
Drivetrain
Front-Wheel Drive
Front-Wheel Drive
Front-Wheel Drive

Steering

Steering Type
Rack-Pinion
Rack-Pinion
Rack-Pinion
Turning Diameter
N/A
35.8 ft
36.7 ft

Wheels

Wheels Type
Aluminum Wheels
N/A
Aluminum Wheels
Front Wheel Size
16" x 6.5"
17" x 7"
17" x 7.5"
Rear Wheel Size
16" x 6.5"
17" x 7"
17" x 7.5"

Suspension

Front Suspension
Strut
Strut
Strut
Rear Suspension
Multi-Link
Multi-Link
Multi-Link

Tires

Front Tire
P205/65HR16
P215/55VR17
P225/55VR17
Rear Tire
P205/65HR16
P215/55VR17
P225/55VR17
Spare Tire
Compact
N/A
Compact

Fuel and MPG

Fuel Economy

Combined
32 MPG
42 MPG
29 MPG
City
29 MPG
40 MPG
26 MPG
Highway
38 MPG
45 MPG
35 MPG

Emissions

CO2 Emissions @ 15K mi/year
5.6 (Est) Tons/yr
4.2 Tons/yr
6.2 (Est) Tons/yr

Fuel Tank

Fuel Tank Capacity
14.8 gallons
15.9 gallons
16.4 gallons
Cruising Range City
429.2 miles
636 miles
426.4 miles
Cruising Range Highway
562.4 miles
715.5 miles
574 miles

Dimensions and Measurement

Exterior Dimensions

Length
193.1 in
191.1 in
192.7 in
Height
56.9 in
57.5 in
57.1 in
Max Width
73.2 in
73.2 in
72.4 in
Front Width
64.3 in
63.5 in
62.4 in
Rear Width
64.6 in
63.8 in
62 in
Wheelbase
112.2 in
110.4 in
111.4 in
Ground Clearance
5.3 in
5.1 in
6.5 in

Interior Space

Seating Capacity
5 seater
5 seater
5 seater
Front Seat Leg Room
46.1 in
45.5 in
42.2 in
Front Seat Headroom
40.2 in
39.8 in
38.4 in
Front Seat Shoulder Room
58 in
58.1 in
55.9 in
Front Seat Hip Room
56.6 in
56 in
53.5 in
Rear Seat Leg Room
35.2 in
35.6 in
38.7 in
Rear Seat Headroom
37.8 in
37.8 in
37.1 in
Rear Seat Shoulder Room
56.1 in
56.4 in
55.1 in
Rear Seat Hip Room
56.6 in
56 in
53.5 in

Weight and Towing

Curb Weight
3,115 lbs
N/A
3,437 lbs

Cargo Space

Trunk Volume
16 ft³
13.4 ft³
14.7 ft³

Colors and Materials

Standard Exterior Colors

  • Ebony Black
  • Everlasting Silver
  • Gravity Blue
  • Runway Red
  • Deep Crystal Blue
  • Jet Black Mica
  • Machine Gray Metallic
  • Snowflake White Pearl Mica
  • Soul Red Crystal Metallic

Optional Exterior Colors

  • Glacier White Pearl
  • Passion Red
  • Aurora Black
  • Snow White Pearl
N/A

Standard Interior Materials

  • Black, Cloth Seat Trim
  • Black, Leather Seat Trim
  • Black, Cloth Seat Trim

Features and Options

Infotainment

HD Radio
Not Available
Not Available
Standard
Bluetooth Connection
Standard
Standard
Standard
Hard Disk Drive Media Storage
Not Available
Standard
Not Available
Premium Sound System
Not Available
Standard
Not Available
Satellite Radio
Not Available
Standard
Not Available
Smart Device Integration
Standard
Standard
Standard
Auxiliary Audio Input
Standard
Standard
Standard
MP3 Player
Standard
Standard
Standard

Interior Trim

Bucket Seats
Standard
Standard
Standard
Cloth Seats
Standard
Standard
Standard
Leather Seats
Not Available
Standard
Not Available
Leather Steering Wheel
Not Available
Standard
Standard
Premium Synthetic Seats
Not Available
Standard
Not Available
Vinyl Seats
Not Available
Standard
Not Available
Sun/Moonroof
Not Available
Optional
Not Available

Comfort

Navigation System
Not Available
Standard
Not Available
Steering Wheel Audio Controls
Standard
Standard
Standard
Power Mirror(s)
Standard
Standard
Standard
A/C
Standard
Standard
Standard
Adaptive Cruise Control
Not Available
Standard
Standard
Climate Control
Standard
Standard
Standard
Cooled Front Seat(s)
Not Available
Optional
Not Available
Cruise Control
Standard
Standard
Standard
Hands-Free Liftgate
Not Available
Standard
Not Available
Heated Front Seat(s)
Not Available
Standard
Not Available
Heated Steering Wheel
Not Available
Optional
Not Available
Keyless Entry
Standard
Standard
Standard
Multi-Zone A/C
Standard
Standard
Standard
Power Driver Seat
Not Available
Standard
Not Available
Power Passenger Seat
Not Available
Optional
Not Available
Remote Engine Start
Not Available
Standard
Not Available
Remote Trunk Release
Standard
Standard
Standard
Seat Memory
Not Available
Optional
Not Available
Keyless Start
Not Available
Standard
Standard
Telematics
Not Available
Standard
Standard

Safety

Safety Features

Back-Up Camera
Standard
Standard
Standard
Cross-Traffic Alert
Standard
Standard
Standard
Rear Parking Aid
Not Available
Standard
Not Available
Blind Spot Monitor
Not Available
Standard
Standard
Lane Departure Warning
Standard
Standard
Standard
Lane Keeping Assist
Standard
Standard
Standard
ABS
Standard
Standard
Standard
Tire Pressure Monitor
Standard
Standard
Standard
Brake Assist
Standard
Standard
Standard
Stability Control
Standard
Standard
Standard
Traction Control
Standard
Standard
Standard

US NHTSA crash test result

Overall Rating
N/A
N/A
Frontal Barrier Crash Rating
N/A
N/A
Side Crash Rating
N/A
N/A
Rollover Rating
N/A
N/A

Airbags

Driver Air Bag
Standard
Standard
Standard
Front Head Air Bag
Standard
Standard
Standard
Front Side Air Bag
Standard
Standard
Standard
Knee Air Bag
Standard
Standard
Not Available
Passenger Air Bag
Standard
Standard
Standard
Rear Head Air Bag
Standard
Standard
Standard
Rear Side Air Bag
Standard
Not Available
Not Available

Warranty

Warranty Summary

Basic
5 Years / 60,000 Miles
5 Years / 60,000 Miles
3 Years / 36,000 Miles
Corrosion
5 Years / 100,000 Miles
5 Years / 100,000 Miles
5 Years / Unlimited Miles
Drivetrain
10 Years / 100,000 Miles
10 Years / 100,000 Miles
5 Years / 60,000 Miles
Roadside Assistance
5 Years / 60,000 Miles
5 Years / 60,000 Miles
3 Years / 36,000 Miles
Hybrid/Electric Components
N/A
10 Years / 100,000 Miles
N/A