2026 Kia K5 GT vs 2026 Mazda Mazda3 2.5 Turbo
Full side-by-side comparison — pricing, performance, fuel economy, features, and safety. Updated 2026.
Full Spec Comparison
K5 GT starts at $34,090, $380 less. K5 GT leads with 27 MPG. K5 GT makes 290 hp (+40).
| Spec | 2026 Kia K5 GT | 2026 Mazda Mazda3 2.5 Turbo |
|---|---|---|
| Pricing | ||
| MSRP | $34,090 Save $380 | $34,470 +$380 |
| Powertrain | ||
| Engine | 2.5L Turbo | 2.5L Turbo |
| Horsepower | 290 hp +40 hp | 250 hp 40 hp less |
| Torque | 311 lb-ft | 320 lb-ft |
| Transmission | 8-Spd DCT | 6-Spd AT |
| Drivetrain | FWD | AWD |
| Fuel Economy | ||
| City MPG | 24 +1 | 23 1 less |
| Hwy MPG | 32 +1 | 31 1 less |
| Combined MPG | 27 +1 | 26 1 less |
| Interior & Tech | ||
| Seats | 5 | 5 |
| Cargo | 16.0 cu ft | 13.2 cu ft |
| Screen | 12.3" | 10.25" |
| Wireless CarPlay | Yes | Yes |
| Heated Seats | Yes | Yes |
| Moonroof | Yes | Yes |
| Dimensions | ||
| Curb Weight | 3,480 lbs | 3,473 lbs |
| Wheelbase | 112.2" | 107.3" |
| Length | 193.1" | 184.8" |
| Wheels | 19" Alloy | 18" Alloy |
| Safety | ||
| Safety Suite | Drive Wise | i-Activsense |
K5 GT or Mazda3 2.5 Turbo?
Both are competitive. K5 GT has a lower entry price, K5 GT leads on efficiency.Test drive both.
FAQ
What is the price difference between the 2026 Kia K5 GT and 2026 Mazda Mazda3 2.5 Turbo?
Which gets better gas mileage, the K5 GT or Mazda3 2.5 Turbo?
Should I buy a 2026 Kia K5 or Mazda Mazda3?
Which is more reliable, the Kia K5 or Mazda Mazda3?
Is the Kia K5 bigger than the Mazda Mazda3?
What is the cost of insurance for the K5 GT vs Mazda3 2.5 Turbo?
What is the total cost of ownership for the 2026 Kia K5 GT?
Who Should Choose the K5 GT
The 2026 Kia K5 GT appeals to buyers who want strong value without overspending. At $34,090, it undercuts the Mazda3 2.5 Turbo by $380.
Fuel economy is a clear strength here — 27 combined MPG means lower running costs over the life of the vehicle. Kia ownership comes with a distinct ownership proposition. Compare more: K5 LXS vs K5 GT-Line, K5 LXS vs K5 GT, K5 GT-Line vs K5 GT.
Who Should Choose the Mazda3 2.5 Turbo
The 2026 Mazda Mazda3 2.5 Turbo is the better fit for buyers who value what the Mazda Mazda3 brings to the table.
Mazda's approach to this sedan emphasizes a balance of features and value. If that aligns with your priorities, the Mazda3 2.5 Turbo deserves serious consideration.
Why the Price Difference Exists
The $380 price gap reflects different brand strategies and equipment levels. The Mazda3 2.5 Turbo carries a premium, which is driven by relatively modest equipment differences between the two.
Powertrain differences account for part of the gap — the K5 GT makes 40 more hp. Feature differences like a larger touchscreen, larger wheels also contribute. Both are competitive within the sedan market, and neither represents a poor value at their respective price points.
What Kind of Buyer Notices the Difference
Enthusiast drivers will feel the differences immediately if there's a powertrain gap. A 40 hp difference is noticeable during merging, passing, and hill climbs. Interior differences become apparent on longer trips where seat comfort, noise levels, and tech features matter more.
For buyers who primarily drive in urban and suburban settings under 40 mph, both of these sedans will feel remarkably similar in daily use. The differences surface on road trips, in extreme weather (where heated seats and AWD matter), and during technology-heavy interactions like navigation and phone integration.
When Both Sedans Feel the Same
In a parking lot, at a stoplight, or cruising in light traffic, these two vehicles deliver very similar experiences. Both are modern, safe sedans with contemporary safety suites, decent infotainment, and comfortable cabins. Neither will leave you feeling shortchanged in everyday scenarios.
The choice between Kia and Mazda often comes down to brand loyalty, dealer experience, and which vehicle simply feels right during a test drive. We recommend driving both back-to-back on the same day — the subtle differences in steering feel, seat position, and visibility are more informative than any spec sheet.