Audi A6 vs Kia K5

The 2025 Kia K5 presented a bold and modern appearance with its "Star Map" front running lights and taillights, which complemented its dramatic design. The updated front and rear ends contributed to a contemporary look, although the wheel designs were inconsistent. The GT1 Package on the K5 GT included black wheels that seemed out of place, resembling those from a Sorento X-Pro. Despite the K5 GT being the more exciting option, it was not the most popular choice among buyers. Instead, the base LXS, sporty GT-Line, and upscale EX trims were favored, with prices ranging from $28,145 to $35,645. The K5 EX, priced at $35,830 with optional floor mats, offered a near-luxury experience, though the SynTex synthetic leather upholstery was less appealing due to its sticky texture. The 24-inch Panoramic Display was a standout feature, but the touch-sensing control panel underneath was frustratingly easy to misoperate, leading to driver distraction.

The 2026 Audi A6, while not as visually striking as some competitors, maintained a handsome and refined appearance. Its "singleframe" grille was positioned lower and further out, and the fender flares and pronounced rib along the sides added subtle definition. The A6's lighting features included pixelated LED headlights with programmable signatures and taillights that accommodated programmable icons. However, the similarity between the hazard and auto park symbols was a drawback. The A6 was available in Premium, Premium Plus, and Prestige trims, with the S Line Black Optic Package adding sporty elements to the Prestige trim. The Sport Plus Package offered 21-inch wheels and a sport rear differential, enhancing handling. Despite these features, the interior materials in the Prestige models felt bland and cheap, detracting from the overall luxury experience.

The 2025 Kia K5 transitioned from a lively turbocharged 1.6-liter engine to a less exciting 2.5-liter four-cylinder engine, producing 191 horsepower and 182 pound-feet of torque. This engine, paired with an eight-speed automatic transmission, powered the front wheels, with an optional AWD system available for the GT-Line trim. The K5 GT addressed power concerns with a turbocharged 2.5-liter engine delivering 290 hp and 311 lb-ft of torque, though it was only available with FWD. The K5's standard engine swap resulted in adequate acceleration and a quiet ride, with an EPA fuel economy estimate of 29 mpg combined, though real-world testing averaged 24.9 mpg. The K5 EX featured 18-inch wheels with Pirelli P Zero tires, providing a comfortable ride and handling. While the K5 EX handled predictably, it lacked engagement, with steering that was not particularly quick or precise. The K5 GT improved handling with a sport-tuned suspension and faster steering ratio, along with larger brakes and an eight-speed "wet" dual-clutch transmission.

The 2026 Audi A6 offered a compelling powertrain with a turbocharged 3.0-liter V6 engine, producing 362 horsepower and 406 pound-feet of torque, paired with a seven-speed dual-clutch transmission and standard quattro AWD. This engine, shared with the S5 sedan, provided impressive acceleration, with a 0-60 mph time of 4.5 seconds. The A6's power made it feel energetic, though there was a noticeable hesitation from the transmission under heavy throttle. The Sport Plus Package included a sport rear differential and rear-axle steering, enhancing handling and stability. The A6's base steering system offered precision, but the Sport Plus Package's enhancements made little difference in overall behavior. The A6 excelled on highways, though tire noise on less-than-perfect pavement was a drawback.

The 2025 Kia K5 offered a comfortable interior, with all trim levels featuring a front passenger seat height adjuster. The EX trim provided 10-way power-adjustable front seats with heating and ventilation, a heated steering wheel, and rear air conditioning vents. The K5's rear seat was spacious and supportive, with ample legroom and headroom. Interior storage was generous, with a large bin under the center armrest, bigger cupholders, and a wireless smartphone charger. The trunk offered 15.6 cubic feet of space, with practical features like enclosed lid hinges and a grip for easy closure.

The 2026 Audi A6, while 2.4 inches longer than its predecessor, did not offer increased passenger space due to the unchanged wheelbase. The panoramic glass roof added two inches of front-seat headroom, but rear-seat headroom and legroom remained similar. The A6 provided comparable space to a BMW 5 Series, with rear climate controls and USB-C ports. Heated and ventilated front seats were standard, with optional sport seats offering massagers. The A6 retained a conventional trunk with 13.5 cubic feet of space, slightly less than the previous generation but more than some competitors.

The 2025 Kia K5 featured a 12.3-inch touchscreen infotainment system with multi-device Bluetooth pairing, wireless Apple CarPlay and Android Auto, SiriusXM satellite radio, and Kia Connect services. The EX trim included a 12.3-inch digital instrumentation panel. Kia Connect offered features like remote engine starting and cabin pre-conditioning, though it was not set up in the test car. Pairing an iPhone and using Apple CarPlay was straightforward, with Siri providing reliable assistance. The K5 EX's 12-speaker Bose audio system delivered decent sound quality. Kia's digital key technology allowed smartphones or smartwatches to unlock, start, and drive the car.

The 2026 Audi A6 introduced the Digital Stage setup, with an 11.9-inch digital instrument cluster and a 14.5-inch touchscreen. An optional 10.9-inch front-passenger touchscreen addressed the main screen's driver-oriented tilt. The MMI infotainment system was criticized for its oversimplified layouts and small text. Audi planned to update the interface mid-year, adding features like an integrated dashcam. The optional Bang & Olufsen 3D audio system included headrest speakers for navigation directions. Wireless Apple CarPlay and Android Auto were standard, though the interface's usability was a concern.

The 2025 Kia K5 came equipped with a comprehensive suite of driver-assist features, including intersection turn assistance, active blind-spot collision avoidance, and a leading vehicle departure alert. The GT-Line trim added Highway Driving Assist, offering semi-autonomous acceleration, braking, and steering. The EX trim featured a surround-view camera system, blind-spot cameras, and side parking sensors. The K5 earned a five-star overall safety rating from the NHTSA, though IIHS ratings were pending.

The 2026 Audi A6 included standard driver-assist features like adaptive cruise control, forward-collision warning, and blind-spot monitors. Premium Plus and Prestige trims added adaptive cruise assist and a 360-degree camera system. The A6 lacked a hands-free driving system, and the lane-centering feature allowed some lane wobble. Crash-test ratings from the IIHS and NHTSA were not available at the time of writing.