VS
At a Glance
Power
191hp @ 6100
182hp @ 6000
Torque
181lb-ft @ 4000
178lb-ft @ 3600
Fuel
28 mpg est.
30 mpg est.
Engine
2.5 L/152ci
2.5 L/152ci
Choosing between the KIA K5 and the Nissan Altima is one of the most common decisions car buyers in the United States face. The KIA K5 delivers 191hp @ 6100 while the Nissan Altima produces 182hp @ 6000. On fuel, the K5 returns 28 mpg est. while the Altima uses 30 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $30,090 for the K5 and $29,080 for the Altima. Both vehicles have their merits. The right choice depends on your priorities: fuel economy, performance, towing ability, safety features or total cost of ownership. This comparison covers every specification available so you can make an informed decision.
Performance
Power Output (hp)
191hp @ 6100
182hp @ 6000
Torque (lb-ft)
181lb-ft @ 4000
178lb-ft @ 3600
Engine & Drivetrain
Engine Capacity
2.5 L/152ci
2.5 L/152ci
Cylinders
4
4
Fuel Type
Gasoline
Gasoline
Transmission
Automatic
CVT w/OD
Number of Gears
8
—
Drive Wheels
All Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
28 mpg est.
30 mpg est.
Fuel Economy - City (mpg)
24mpg
25 (2025)mpg
Fuel Economy - Highway (mpg)
33mpg
34 (2025)mpg
Fuel Tank Capacity (gal)
15.8gal
16gal
Dimensions
Length (in)
193.1in
192.9in
Width (in)
73.2in
72.9in
Height (in)
56.9in
57.3in
Wheelbase (in)
112.2in
111.2in
Curb Weight (lbs)
3463lbs
3399lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ Standard
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
✓ Standard
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
✓ Standard
Adaptive Cruise Control
✓ Standard
✓ Standard
Bluetooth
✓ Standard
✓ Standard
Backup Camera
✓ Standard
✓ Standard
Rear Parking Aid
✓ Standard
✓ Standard
Sunroof
✓ Standard
✓ Standard
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
✓ Standard
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Nissan Altima
2 / 4 categories
Performance
K5
Fuel Economy
Altima
Value
Altima
Practicality
Tied
Pros & Cons
KIA K5
Well-rounded specification
Higher fuel consumption (28 mpg est.)
Higher starting price
Nissan Altima
Better fuel economy (30 mpg est.)
Lower starting price ($29,080)
Few notable weaknesses
Frequently Asked Questions
Which is more fuel efficient, the K5 or Altima?
The K5 gets 28 mpg est. and the Altima gets 30 mpg est. on the combined cycle. The Altima is the more fuel-efficient choice. In real-world conditions with a mix of highway and urban driving, actual figures will be slightly higher.
Which has more power, the K5 or Altima?
The K5 produces 191hp @ 6100 and 181lb-ft @ 4000 of torque while the Altima delivers 182hp @ 6000 and 178lb-ft @ 3600 of torque. The K5 is the more powerful option.
What is the price difference between the K5 and Altima?
The K5 starts from $30,090 and the Altima from $29,080. The Altima is cheaper by $1,010 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the K5 or the Altima?
It depends on your priorities. If fuel economy matters most, check the mpg figures above. If you need towing capacity, compare the towing ratings. For day-to-day driving - commutes, school runs and highway trips - consider ground clearance, service network coverage, and total cost of ownership including insurance and maintenance. Use the spec tables above to compare every detail before making your decision.
Also Consider