2022 Mercedes-Benz GLS vs 2023 Kia Carnival

The 2022 Mercedes-Benz GLS 450 presented a more understated and refined appearance compared to its more ostentatious competitors like the Cadillac Escalade and Lincoln Navigator. Mercedes opted for a subtle design, avoiding the flashy grilles seen on models like the BMW X7. However, for those seeking more visual flair, the AMG GLS 63 and Maybach versions offered enhanced styling with features like flared wheel arches, chrome accents, and larger wheels. Inside, the GLS 450 maintained a luxurious feel with leather upholstery, a panoramic roof, and ambient lighting, though it lacked some of the more extravagant options available in higher trims. The digital instrument cluster and infotainment touchscreen were well-integrated, providing a high-quality, yet understated luxury experience.

In contrast, the 2023 Kia Carnival stood out with its unique styling and upscale image, making it an attractive option in the minivan segment. The SX Prestige trim, in particular, featured high-tech lighting, an intricate grille, and decorative roof pillar trim, contributing to its sophisticated appearance. Inside, the Carnival offered dual instrumentation and infotainment screens, dual power sunroofs, and flashy dashboard trim, creating a modern and stylish cabin. The interior materials were of good quality, and the transmission shifter's solid action added to the sense of refinement. Overall, the Carnival managed to combine practicality with a touch of luxury, appealing to those who wanted a minivan that didn't look or feel like one.

The 2022 Mercedes-Benz GLS 450 was powered by a 3.0-liter turbocharged inline six-cylinder engine paired with a nine-speed automatic transmission and Mercedes’ EQ Boost mild-hybrid system. This setup delivered 362 horsepower and 369 pound-feet of torque, with an additional 21 hp and 184 lb-ft of torque available from the electric motor. The GLS 450's engine provided ample power, and the electric assist was seamlessly integrated. However, the air suspension, while adjustable, lacked the refinement expected in a luxury SUV, leading to excessive body motion over bumps. The GLS 450 had a towing capacity of 7,700 pounds, which was competitive but not class-leading.

The 2023 Kia Carnival featured a 3.5-liter V6 engine with an eight-speed automatic transmission, producing 290 horsepower and 262 lb-ft of torque. It was EPA-rated for 22 mpg in combined driving and offered a towing capacity of 3,500 pounds. The Carnival's V6 engine provided sufficient power, even with a full load of passengers, and the transmission performed smoothly. However, the lack of all-wheel drive and a hybrid option was a drawback, especially in adverse weather conditions. The Carnival's brakes were generally reliable, though they experienced some fade during a mountain descent. The ride quality was firm yet comfortable, with the suspension handling speed bumps and humps well.

The 2022 Mercedes-Benz GLS offered a seven-seat configuration with a 60/40 split-folding second-row bench seat and two third-row seats. An optional six-seat version replaced the bench with captain’s chairs. The second-row seats could slide and fold for third-row access, and the GLS boasted excellent second-row legroom. Cargo space was 17.4 cubic feet with all seats in place, expanding to 84.7 cubic feet with the second and third rows folded. The GLS featured power-folding seats and a power tailgate, with the air suspension aiding in loading and unloading. However, some ergonomic issues, like the touchscreen's reach and center console design, were noted.

The 2023 Kia Carnival's interior was designed to resemble an SUV, with a lower driving position and a center console similar to those found in SUVs. The Carnival offered three types of upholstery, with the SX Prestige featuring genuine leather. The test vehicle had a three-zone climate control system, heated and ventilated front seats, and a heated steering wheel. The Carnival's smart sliding doors and VIP Lounge Seats added convenience, though the latter limited cargo space to 86.9 cubic feet. The third-row seat was spacious, with USB ports and cupholders, and the cargo area offered 40.2 cubic feet of space behind the third row. The Carnival's maximum cargo capacity was 145.1 cubic feet with the second-row seats removed.

The 2022 Mercedes-Benz GLS came equipped with the MBUX infotainment system, featuring a 12.3-inch touchscreen, digital instrument cluster, Bluetooth, Apple CarPlay/Android Auto, navigation, and a 13-speaker Burmester audio system. The system offered multiple control options, including voice recognition, a touchpad controller, and steering wheel touchpads. The voice recognition system was particularly effective, though the touchpad controller was overly sensitive. The GLS lacked the augmented-reality navigation feature found in the S-Class, and the navigation system occasionally suggested inefficient routes.

The 2023 Kia Carnival SX Prestige featured 12.3-inch digital instrumentation and infotainment touchscreens, offering a visually appealing and user-friendly interface. The digital instrumentation impressed with its dynamic graphics and changing themes. The infotainment system included Bluetooth, Apple CarPlay, Android Auto, SiriusXM, and a one-year subscription to Kia Connect Ultimate services. However, the 12-speaker Bose audio system was underwhelming. Additional tech features included Quiet Mode, Passenger Talk, and Passenger View with Night Vision. The optional rear-seat entertainment system offered streaming capabilities, though it was not widely used by passengers.

The 2022 Mercedes-Benz GLS included standard safety features such as forward collision warning, automatic emergency braking, blind-spot monitoring, and a surround-view camera system. Additional features like adaptive cruise control and lane-keep assist were optional. The GLS also offered Pre Safe, which prepared the vehicle for a potential collision by tightening seat belts and closing windows. However, crash-test ratings from the IIHS and NHTSA were unavailable at the time of publication.

The 2023 Kia Carnival came with a comprehensive suite of safety features, including forward-collision warning, automatic emergency braking, blind-spot monitoring, and lane-keeping assist. The rear-seat reminder system and Safe Exit System were notable standard features. Higher trims added Junction Turning Detection, Highway Driving Assist, and a surround-view camera. The Highway Driving Assist system was particularly effective, providing smooth and reliable semi-autonomous driving assistance. The IIHS named the Carnival a Top Safety Pick for 2022, though the NHTSA had not yet tested it.