 Perodua claims ECE fuel consumption figures of 21.7 km/l for the manual variant and 21.0 km/l with the automatic, while the auto-only Advance variant is capable of 22.0 km/l, courtesy of the new Eco Idle stop-start system and regenerative braking.The all-new 1NR-VE engine features dual variable-valve timing with intelligence (VVT-i) on both intake and exhaust valves.Additionally, the 1NR-VE features longer ports in its intake system for improved low- and mid-range torque, and a low-friction roller rocker arm-based valvetrain for improved fuel efficiency.