Auto Buyers Guide gave the 2026 Mercedes-AMG G63 a positive 64/100 score, praising it as an "epic" and "absolutely bonkers" SUV that delivers genuine thrills. The cabin and technology stand out with perfect 100/100 scores, featuring comprehensive door panel controls, ambient lighting, and a turban-design air vent system, while the driving technology shines with real off-road capability including front, center, and rear lockers plus an off-road cockpit with MBUX displays. However, practical concerns temper the enthusiasm: fuel economy remains poor at 13.8 mpg despite the mild hybrid system, cargo space disappoints relative to the boxy exterior, and the $180,000+ starting price (up to $231,000 fully equipped) creates a value proposition that scored 0/100. This vehicle is for wealthy enthusiasts who view the G63 as a conspicuous statement piece rather than a practical family hauler.

Doug DeMuro's review of the 2023 Mercedes-AMG G63 4x4 Squared is mixed, with strong praise for its extreme design and engineering but significant reservations about value and practicality. The vehicle excels in design (82/100) with its factory off-road lift kit, 13.8 inches of ground clearance, and portal axles, while the cabin tech (75/100) impresses with independent climate zones and innovative rear-view mirror camera technology—though it's hampered by outdated infotainment lacking a touchscreen. However, the $350,000 starting price represents a brutal $110,000 jump from the previous generation, and the commanding seating position requires running boards to enter and masks the actual acceleration performance despite 580+ horsepower. This vehicle is strictly for wealthy enthusiasts who want an impractical, conversation-starting off-road icon and don't mind paying a premium for engineering novelty over everyday usability.