* Based on opinions and should be considered as general guidance only.
- Reliability (3)While generally well-built, some specific components can be prone to issues, and it's not considered class-leading in long-term reliability.
- Maintenance (2)Maintenance and repair costs can be significantly higher than average due to the luxury badge and complex systems, requiring specialized service.
- Technology (4)Features a user-friendly infotainment system (COMAND), good suite of driver assistance features for its era, but some tech is dated compared to newer vehicles.
- Comfort (5)Exceptional ride quality, spacious and luxurious interior with high-quality materials, and comfortable seating for up to seven passengers.
- Dynamics (4)The GL 550 offers a powerful V8 engine and standard 4MATIC all-wheel drive, providing strong acceleration and confident handling for its size, though it's not a sports car.