When comparing the Kia K5's and the Mazda Mazda6's specifications and ratings, the Kia K5 has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency and interior volume. The Mazda Mazda6 has the advantage in the areas of resale value and base engine power. Based on this comparison of the Kia K5's and the Mazda Mazda6's specifications and ratings, the Kia K5 is a better car than the Mazda Mazda6.
Kia K5 vs. Mazda Mazda6 Pricing
A used 2021 Kia K5 ranges from $19,587 to $30,750 while a used 2021 Mazda Mazda6 is priced between $19,994 to $31,374.
Kia K5 vs. Mazda Mazda6 Resale/Retained Value
Looking at the 5-year depreciation rate for both models, the Kia K5 loses 46.8 percent of its value and the Mazda Mazda6 loses 43.8 percent of its value. This means the Mazda Mazda6 retains 3 percentage points more of its value and has the advantage of higher resale value versus the Kia K5.
Engine Power and Fuel Efficiency Comparison
For engine performance, the Kia K5’s base engine makes 180 horsepower, and the Mazda Mazda6 base engine makes 187 horsepower. The K5 is rated to deliver an average of 31 miles per gallon, with a highway range of 585 miles. The Mazda6 is rated to deliver an average of 29 miles per gallon, with a highway range of 574 miles. This gives the Kia K5 the fuel efficiency and maximum range advantage over the Mazda Mazda6. Both models use regular unleaded.
Passenger Space Comparison
While both models are midsize cars, the Kia K5 has the advantage of offering more interior volume, reflected in more front head room, front shoulder room, front leg room, rear head room, rear shoulder room, and cargo space. The Mazda Mazda6 has the advantage in the area of rear leg room.
Safety Ratings Comparison
When comparing crash test ratings from NHTSA, both the Kia K5 and the Mazda Mazda6 have the same average safety rating of 5 out of 5 Stars.