Comparison
2021 Kia K5 vs Hyundai Sonata: Siblings differences & changes compared
The Kia K5 replaces the Optima, and although it looks completely different it again it shares a lot with the Hyundai Sonata.
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Kia K5 (2021, DL3, fifth generation) photos
The 2021 Kia K5 is a replacement for the Optima midsize sedan, and it has a longer body with dramatic new styling and two turbo I4 engines.
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2021 Kia Optima may be sold as the K5 in the USA
The 2021 Kia Optima is due for a dramatic (and very sexy) redesign, but it may get rid of the well established Optima badge in favor of K5.
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2021 Kia Optima thinks its a sports car because sedans are dying
Sales of midsize sedans are going down the toilet thanks to crossovers, so they’re becoming less boring and sportier, with the latest being the Kia Optima.
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Kia K5 (2020, third generation, KDM) photos
The 2020 Kia K5 is the Korean version of the fifth generation Optima with a dramatic new fastback sedan style, and a longer, lower and wider body.
Kia
JF Kia K5 Hybrid photo gallery
The new Kia K5 Hybrid has a 195PS (143kW) hybrid drivetrain with a 156PS (115kW) 2-liter GDI I$ engine and a 6-speed auto with a 38kW electric motor.