At a Glance
Power
191hp @ 6100
188hp @ 6000
Torque
181lb-ft @ 4000
180lb-ft @ 3600
Fuel
32 mpg est.
33 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 188hp @ 6000. On fuel, the K5 returns 32 mpg est. while the Altima uses 33 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $27,490 for the K5 and $27,580 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
188hp @ 6000
Torque (lb-ft)
181lb-ft @ 4000
180lb-ft @ 3600
Engine & Drivetrain
Engine Capacity
2.5 L/152ci
2.5 L/152ci
Cylinders
4
4
Fuel Type
Gasoline
Gasoline
Transmission
Automatic
Automatic
Number of Gears
8
—
Drive Wheels
Front Wheel Drive
Front Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
32 mpg est.
33 mpg est.
Fuel Economy - City (mpg)
26mpg
27 (2025)mpg
Fuel Economy - Highway (mpg)
37mpg
39 (2025)mpg
Fuel Tank Capacity (gal)
15.8gal
16.2gal
Dimensions
Length (in)
193.1in
192.9in
Width (in)
73.2in
72.9in
Height (in)
56.9in
56.8in
Wheelbase (in)
112.2in
111.2in
Curb Weight (lbs)
3230lbs
3281lbs
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
Heated Seats
—
✓ Standard
Power Seat Adjustment
—
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Tie
1 / 4 categories
Performance
K5
Fuel Economy
Altima
Value
Tied
Practicality
Tied
Pros & Cons
KIA K5
Lower starting price ($27,490)
Higher fuel consumption (32 mpg est.)
Nissan Altima
Better fuel economy (33 mpg est.)
Higher starting price
Frequently Asked Questions
Which is more fuel efficient, the K5 or Altima?
The K5 gets 32 mpg est. and the Altima gets 33 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 188hp @ 6000 and 180lb-ft @ 3600 of torque. They produce closely matched power outputs.
What is the price difference between the K5 and Altima?
The K5 starts from $27,490 and the Altima from $27,580, a difference of just $90, which is negligible. At this price point the two are essentially tied on starting price. 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