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Used 2021 Kia K5 for SaleNationwide

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1,635 vehicles found

CarGurus Analysis:

2021 Kia K5

4.7

  • With 1,634 currently listed for sale and an average price of $18,790.00, 31.9% of 2021 Kia K5s for sale on CarGurus are rated as good or great deals.

  • Favorably reviewed: Owners rated the 2021 Kia K5 4.7 / 5 stars.

  • 73.1% of 2021 K5 models on CarGurus are accident free.

  • The 2021 Kia K5 boasts a stylish design, a smooth driving experience, and multiple powertrain options, making it a strong competitor in the midsize sedan market.

Research summarized using AI

 

CarGurus Analysis: 2021 Kia K5

7.7
of 10
overall
Look and feel8/10
Technology7/10
Performance6/10
Safety8/10
Form & function9/10
Cost effectiveness8/10
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Summary

  • With 1,634 currently listed for sale and an average price of $18,790.00, 31.9% of 2021 Kia K5s for sale on CarGurus are rated as good or great deals.

  • Favorably reviewed: Owners rated the 2021 Kia K5 4.7 / 5 stars.

  • 73.1% of 2021 K5 models on CarGurus are accident free.

  • The 2021 Kia K5 boasts a stylish design, a smooth driving experience, and multiple powertrain options, making it a strong competitor in the midsize sedan market.

Why it stands out

The 2021 Kia K5 marks a significant departure from the previous Optima, offering an exciting and stylish alternative in the midsize sedan segment. With its modern fastback design and sporty features, the K5 appeals to a variety of buyers looking for both aesthetics and performance. The K5's standard engine, a 1.6-liter turbocharged four-cylinder, provides a respectable 180 horsepower, while the upcoming GT variant promises even more thrilling performance. Coupled with a comfortable interior and user-friendly technology, the K5 makes for an attractive option. While it delivers a smooth drive and impressive fuel efficiency, some drivers have noted that it doesn't handle quite as sportily as its aggressive design suggests. Nevertheless, the K5 stands out for its value and style, underpinned by a five-year/60,000-mile warranty.

Other model years to consider

  • 2022 Kia K5

    • Average price: $21,008.00
    • Good/great deal percentage: 32.0%
    • User rating: 4.73 / 5
    • Total listings: 2,648
  • 2024 Kia K5

    • Average price: $25,682.00
    • Good/great deal percentage: 38.4%
    • User rating: 5 / 5
    • Total listings: 3,046
  • 2025 Kia K5

    • Average price: $27,603.00
    • Good/great deal percentage: 40.9%
    • User rating: 5 / 5
    • Total listings: 2,357

This analysis is based on CarGurus' proprietary market data from June 29, 2026, CarGurus experts' opinions, and generative AI.

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