VS
At a Glance
Power
375hp @ 5800
191hp @ 6100
Torque
391lb-ft @ 1300
181lb-ft @ 4000
Fuel
20 mpg est.
30 mpg est.
Engine
3.5 L/212ci
2.5 L/152ci
Choosing between the Genesis G80 and the KIA K5 is one of the most common decisions car buyers in the United States face. The Genesis G80 delivers 375hp @ 5800 while the KIA K5 produces 191hp @ 6100. On fuel, the G80 returns 20 mpg est. while the K5 uses 30 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $78,350 for the G80 and $34,990 for the K5. 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.
Specification
Genesis G803.5T Sport Prestige AWD 2026 - From $78,350
KIA K5EX Auto FWD 2026 - From $34,990
Performance
Power Output (hp)
375hp @ 5800
191hp @ 6100
Torque (lb-ft)
391lb-ft @ 1300
181lb-ft @ 4000
Engine & Drivetrain
Engine Capacity
3.5 L/212ci
2.5 L/152ci
Engine Layout
V
—
Cylinders
6
4
Fuel Type
Gasoline
Gasoline
Forced Induction Device
Turbocharged
—
Transmission
Automatic
Automatic
Number of Gears
8
8
Drive Wheels
All Wheel Drive
Front Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
20 mpg est.
30 mpg est.
Fuel Economy - City (mpg)
16 (2025)mpg
25mpg
Fuel Economy - Highway (mpg)
24 (2025)mpg
36mpg
Fuel Tank Capacity (gal)
19.3gal
15.8gal
Dimensions
Length (in)
197in
193.1in
Width (in)
75.8in
73.2in
Height (in)
57.7in
56.9in
Wheelbase (in)
118.5in
112.2in
Curb Weight (lbs)
4508lbs
3395lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
—
✓ 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
KIA K5
2 / 4 categories
Performance
G80
Fuel Economy
K5
Value
K5
Practicality
Tied
Pros & Cons
Genesis G80
Well-rounded specification
Higher fuel consumption (20 mpg est.)
Higher starting price
KIA K5
Better fuel economy (30 mpg est.)
Lower starting price ($34,990)
Few notable weaknesses
Frequently Asked Questions
Which is more fuel efficient, the G80 or K5?
The G80 gets 20 mpg est. and the K5 gets 30 mpg est. on the combined cycle. The K5 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 G80 or K5?
The G80 produces 375hp @ 5800 and 391lb-ft @ 1300 of torque while the K5 delivers 191hp @ 6100 and 181lb-ft @ 4000 of torque. The G80 is the more powerful option.
What is the price difference between the G80 and K5?
The G80 starts from $78,350 and the K5 from $34,990. The K5 is cheaper by $43,360 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the G80 or the K5?
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