The Proton X90 should be manageable in city use when judged against its listed dimensions. Key size figures include 2026 1.5T Prime X: 4830 mm; 2026 1.5T Prime: 4830 mm; 2026 1.5T Lite: 4830 mm; 2025 1.5T Flagship: 4830 mm; 2025 1.5T Premium: 4830 mm; 30 more variants. Length affects parking ease, width affects tight ramps and urban lanes, while wheelbase gives a clue to cabin comfort and highway stability.