The Kia Carnival should be capable enough for highway driving based on its listed output. Key figures include 2025 2.2T Standard 7 Seats: 148.4 kW; 2025 2.2T Standard 8 Seats: 148.4 kW; 2025 2.2T Standard 11 Seats: 148.4 kW; 2022 2.2T High 7 Seats: 148.4 kW; 2022 2.2T High 8 Seats: 148.4 kW; 5 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.