The Proton S70 should be capable enough for highway driving based on its listed output. Key figures include 2026 1.5T Flagship X: 181 Ps; 2026 1.5T Flagship: 181 Ps; 2026 1.5T Premium: 181 Ps; 2026 1.5T Executive: 181 Ps; 2025 1.5T Flagship X: 150 Ps; 19 more variants. Power helps with maintaining speed, while torque matters when merging, climbing gradients or overtaking, so these figures are most useful when viewed through real Malaysian driving conditions.