Porsche Cayenne vs Mercedes-Benz GLC

The 2025 Mercedes-Benz GLC adhered closely to Mercedes’ contemporary design ethos, presenting a visually appealing option in the compact crossover segment. Its taut lines contributed to a muscular and streamlined silhouette, flowing seamlessly from the iconic Mercedes star-pattern grille to the standard LED headlights. The GLC's taller, upright cabin and short overhangs suggested a multi-terrain capability, particularly in models without the AMG Line, which featured unpainted wheel arch liners. The crisp headlights and intricately detailed tail lights ensured the GLC's aesthetic would remain fresh for years. The optional 20-inch AMG five-spoke wheels further enhanced its athletic appearance. Inside, the GLC exuded luxury with its beautifully designed interior, featuring contrasting leather door panels and premium materials. The GLC 350e PHEV model boasted supple white leather seats with heating and ventilation options, offering excellent adjustability and a commanding road view. The interior was a blend of piano black plastic, faux carbon fiber, satin-stitched leather, and painted aluminum trim, creating a sophisticated and premium atmosphere.

The 2025 Porsche Cayenne offered a choice between a standard SUV with a squared-off rear or a sporty Cayenne Coupe, with trim levels ranging from the base Cayenne to the high-performance Cayenne Turbo GT. The GTS trim, which was the focus of this review, featured high gloss black trim, bronze exhaust tips, and a unique front fascia with larger air intakes and tinted headlights. Red brake calipers peeked through 21-inch anthracite gray wheels, and the Cayenne Coupe included an adaptive rear spoiler. Inside, the Cayenne allowed for extensive customization, from color choices to trim and seat belts. While the pricing could escalate with options like custom paint jobs, the Cayenne's cabin was well-organized, with mechanical controls for essential features like HVAC and volume. The shifter toggle on the dashboard freed up storage space, and the center console's sliding feature was the only minor drawback in an otherwise thoughtfully designed interior.

The 2025 Mercedes-Benz GLC offered a range of powertrains, including the GLC 300 with rear-wheel drive or 4Matic all-wheel drive, and the GLC 350e 4Matic plug-in hybrid. All models were powered by a 2.0-liter turbocharged four-cylinder engine paired with a nine-speed automatic transmission. The GLC 300 produced 255 horsepower and 295 pound-feet of torque, while the 350e delivered 201 hp and 236 lb-ft. The GLC 300 featured a 48-volt mild-hybrid system, adding 23 hp and 148 lb-ft of torque, enabling a 0-60 mph time of 6.2 seconds. The 350e's hybrid system included a 23.3-kilowatt-hour battery and an electric motor, resulting in a combined output of 313 hp and 406 lb-ft. Despite its weight, the GLC 350e matched the 300's 0-60 time, excelling in city driving and highway passing. The GLC's ride quality, steering, and handling were commendable, with a solid feel and excellent body control. Braking performance was adequate, and the 350e's regenerative braking system was adjustable, enhancing its 54-mile electric range.

The 2025 Porsche Cayenne offered a variety of engines, all capable of impressive performance. The base 3.0-liter V6 produced 348 horsepower and 368 pound-feet of torque, while the Cayenne S featured a V8 with 468 hp. The Turbo GT, available only as a coupe, boasted 650 hp. Plug-in hybrid options offered up to 729 hp. The Cayenne GTS, with its twin-turbo 4.0-liter V8, delivered 493 hp and 486 lb-ft of torque, achieving a 0-60 mph time of 4.2 seconds. The GTS struck a balance between sporty and comfortable, with precise steering and a low center of gravity. The Pirelli P Zero tires, stiffer roll bars, and active suspension contributed to its agility. The GTS excelled in Sport and Sport Plus modes, offering responsive steering and impressive grip. The optional carbon ceramic brakes provided ample stopping power. In Normal mode, the GTS transformed into a comfortable commuter, maintaining its V8 charm. The Cayenne's versatility allowed for a sporty driving experience without sacrificing daily comfort.

The 2025 Mercedes-Benz GLC offered a commanding view of the road, with ample hip, shoulder, and legroom in the front seats, even for taller drivers. However, the rear seats were somewhat tight on leg and headroom, a common challenge in the compact crossover segment. The front seats featured a clever design with a curve to maximize rear legroom. The GLC's boxy shape provided 21.9 cubic feet of cargo space, expanding to 52.6 cubic feet with the rear seats folded. This made it practical for stowing luggage and everyday items, despite having smaller dimensions compared to competitors like the BMW X3 and Audi Q3. The split rear seat dropped easily, allowing for the transportation of larger items like an XL-sized road bike. The GLC's hybridization contributed to its fuel efficiency, with an estimated 29.3 miles per gallon over a mix of driving conditions. The 350e's EPA fuel economy was 23 mpg city, 28 mpg highway, and 25 mpg combined in hybrid mode, with 60 MPGe city, 70 MPGe highway, and 64 MPGe combined in all-electric mode.

The 2025 Porsche Cayenne offered a range of customizable options, with the base model featuring standard eight-way power-adjustable seats, two-zone climate control, and ambient lighting. Higher trims like the GTS included a GT Sport steering wheel and Race-Tex headliner, with options for Race-Tex or leather interiors. The Turbo GT added stainless steel pedal pads and illuminated carbon fiber door-sill guards. While the options list was extensive, buyers needed to pay extra for many features. The Cayenne accommodated five passengers, with a comfortable second row offering ample headroom. The Cayenne's towing capacity exceeded 7,700 pounds, comparable to a mid-size pickup truck. Cargo space was slightly smaller than competitors, with the standard Cayenne offering 27.3 cubic feet behind the second row, expanding to over 60 cubic feet with the seats folded. The coupe version had 20.9 and 53 cubic feet, respectively. The Cayenne Turbo e-hybrid PHEV had slightly reduced cargo space due to the battery.

The 2025 Mercedes-Benz GLC featured the third-generation MBUX infotainment system, with haptic controls for the steering wheel, climate control, and infotainment. The 11.9-inch touchscreen required some adjustment to swipe intensity, with occasional sluggish response. Despite these challenges, wireless Apple CarPlay and Bluetooth connected seamlessly, and the screen resolution was excellent. The ambient lighting customization added to the driving experience, and the Burmester 3D surround sound system provided top-notch audio quality.

The 2025 Porsche Cayenne boasted a curved 12.6-inch digital gauge cluster and a 12.3-inch touchscreen display with the Porsche Communication Management system. Wireless Apple CarPlay, Android Auto, Spotify, Apple Music, satellite radio, and a Wi-Fi hotspot were included. An optional 10.9-inch passenger screen allowed for navigation and media control, with a screen filter to prevent driver distraction. The screens were well-organized and responsive, with voice control options. A head-up display provided essential information, though it appeared dim with polarized sunglasses. The Cayenne featured four high-speed USB-C charging ports and a cooled wireless charging area, preventing phone overheating.

The 2025 Mercedes-Benz GLC came standard with advanced safety features like blind-spot monitoring, active parking assistance, automatic high beams, rain-sensing windshield wipers, and active braking assistance. The optional $1,950 Driver Assistance Package added adaptive cruise control, steering assist, lane-change assist, lane-keep assist, automatic emergency braking, evasive maneuvering, and speed limit assist. These features worked smoothly, enhancing the driving experience in stop-and-go traffic.

The 2025 Porsche Cayenne offered standard safety features like parking sensors, forward collision warning, and blind-spot monitoring. However, adaptive cruise control, lane-keeping assist, and lane-departure warning were optional. Porsche's InnoDrive adaptive cruise control system, which anticipates traffic incidents, was not tested. The Cayenne lacked hands-off/eyes-up driving assist features. Neither the NHTSA nor the IIHS had rated the 2025 Cayenne for safety.