The 2026 Kia K5, formerly known as the Optima, is a sleek midsize sedan that stands out with its sporty demeanor. Available in five trims (LX, LXS, GT-Line, EX, GT), the K5 features a standard 180-horsepower 1.6-liter turbocharged four-cylinder engine on the lower trims, while the GT variant boasts a 290-horsepower 2.5-liter turbo engine. An eight-speed automatic transmission is standard, with a wet dual-clutch eight-speed automatic reserved for the GT model. All trims come standard with FWD, but AWD is available. The K5 hosts an impressive number of safety and tech features. Even base models get an 8-inch touchscreen with Apple CarPlay and Android Auto, while optional 10.25-inch screen and wireless phone connectivity are offered in higher trims. Kia Drive Wise, the standard suite of safety features, includes forward-collision warning, lane-keeping assist, and driver-attention warning among other features.