The Mercedes-Benz GLS AMG should be manageable in city use when judged against its listed dimensions. Key size figures include 2025 AMG GLS 63 4MATIC+: 5233 mm; 2025 AMG GLS 63 4MATIC+: 2157 mm; 2025 AMG GLS 63 4MATIC+: 1836 mm; 2025 AMG GLS 63 4MATIC+: 7. Length affects parking ease, width affects tight ramps and urban lanes, while wheelbase gives a clue to cabin comfort and highway stability.