2021 Lexus IS vs 2021 Kia K5

The 2021 Kia K5 represented a fresh identity for Kia, moving away from its past of drab and unattractive sedans. The K5, with its fastback form and GT-Line trim, showcased a stylish design reminiscent of the Audi A5 Sportback. The car featured a long rear window, unique taillights, and a polished black trim, giving it a sporty and modern appearance. Despite some fake air vents and exhaust tips, the K5's proportions and design details made it a standout in its segment. The interior of the K5 was equally impressive, with a driver-focused dash, quality materials, and a sporty feel, making it a significant step up from previous Kia models.

The 2021 Lexus IS, on the other hand, made a statement with its athletic proportions and elegant design. The car's fast roofline and compact cabin gave it a sporty look, while the new spindle grille and narrow headlights added to its assertive appearance. Inside, the IS featured a simple yet bold design with high-quality materials and a modern aesthetic. However, the analog clock felt outdated in the otherwise contemporary interior. The IS's design and build quality reflected Lexus's commitment to luxury and performance.

The 2021 Kia K5's performance did not quite match its aggressive styling. The GT-Line model, with its softer suspension and Pirelli P Zero All-Season tires, lacked the handling prowess of its competitors. The standard 1.6-liter turbo-four engine produced 180 horsepower and 195 lb-ft of torque, providing decent acceleration but falling short at higher speeds. The K5's fuel economy was impressive, with an EPA-estimated 27 mpg city, 37 mpg highway, and 31 mpg combined for FWD models. The GT trim promised better performance with a 2.5-liter turbocharged engine producing 290 horsepower and 311 lb-ft of torque, but its FWD setup raised concerns about handling.

The 2021 Lexus IS, developed with a focus on the "Lexus Driving Signature," offered a range of powertrains. The IS 300 RWD featured a 2.0-liter turbocharged engine with 241 horsepower and 258 lb-ft of torque, while the AWD version had a 3.5-liter V6 producing 260 horsepower. The IS 350 models, both RWD and AWD, had the same V6 engine tuned to 311 horsepower and 280 lb-ft of torque. The IS's performance was characterized by its crisp, precise handling and balanced feel, thanks to its double-wishbone front and multi-link rear suspension. Fuel economy varied, with the IS 300 RWD achieving 21 mpg city, 31 mpg highway, and 25 mpg combined.

The 2021 Kia K5 offered a spacious interior, comfortably accommodating two adults in the back despite its raked profile. The front seats were supportive and firm, ideal for long drives. The K5's infotainment system was user-friendly, and the optional 10-inch display added to its appeal. Trunk space was generous at 16 cubic feet, providing ample room for luggage.

The 2021 Lexus IS focused on driver comfort and functionality. The driver’s seat was easily adjustable and supportive, with the F Sport trim offering bolstered seats with heating and ventilation. The IS's interior featured ample storage space, including an open cubby, twin cupholders, and large door pockets. The second row was comfortable for two passengers but cramped for three. Trunk space was adequate at 10.8 cubic feet, with a deep configuration and a temporary spare stored beneath the load floor.

The 2021 Kia K5 came standard with wireless Apple CarPlay and Android Auto, making it easy to set up. The LX trim included LED headlights, auto high beams, dual-zone climate control, and lane-keep assist. Higher trims added features like a panoramic sunroof, adaptive cruise control, and a 10-inch infotainment system. The GT trim included paddle shifters, 19-inch wheels, and advanced performance hardware. The K5's adaptive cruise control worked well, even without navigation.

The 2021 Lexus IS featured a touchscreen infotainment system with Android Auto and Apple CarPlay. Lexus Enform services, including Safety Connect, Service Connect, WiFi, and Remote, were available with free trial periods. The optional Mark Levinson 17-speaker audio system provided exceptional sound quality. However, the subscription model for some features, like Dynamic Navigation, could be a drawback for some buyers.

The 2021 Kia K5 had not yet been rated by NHTSA or IIHS, but it was expected to receive top scores due to its strong chassis and body shell. Standard safety features included rear side airbags, a driver’s knee airbag, forward emergency braking with pedestrian detection, lane-keep assist, and a driver attention monitor. Higher trims added features like blind-spot monitoring, rear emergency braking, and parking sensors.

The 2021 Lexus IS also had not been rated by NHTSA or IIHS, but it was expected to perform well based on the previous generation's ratings. The IS came standard with Lexus Safety System+ 2.5, which included a pre-collision system with pedestrian detection, lane-departure warning, road-sign recognition, adaptive cruise control, and intelligent high beams. Additional safety features included blind-spot monitoring, rear cross-traffic alert, and a backup camera with dynamic gridlines.