In the UAE, using S mode (Sport mode) is most beneficial for controlled overtaking on highways like the Sheikh Zayed Road, for short bursts of power in specific scenarios like merging onto the Dubai-Abu Dhabi highway, and for providing a more responsive drive on mountain roads like Jebel Jais. However, for everyday traffic on routes such as the Dubai-Sharjah road, sustained use leads to significantly higher fuel consumption. Data from the UAE Ministry of Energy and Infrastructure for 2023 suggests aggressive driving can reduce fuel economy by 10-15%. Based on common GCC-spec models, the impact is clear: in a Toyota Camry using Special 95 petrol, fuel efficiency may drop from approximately 13.5 km/l in D mode to around 11.5 km/l in S mode during city driving. The total cost of ownership (TCO) calculation is straightforward: if your annual mileage is 25,000 km, the increased consumption could cost an extra 800-1,200 AED per year just in fuel. Furthermore, according to maintenance insights aligned with RTA vehicle testing standards, frequent high-rev operation in S mode can accelerate wear on engine components and transmission fluid, potentially increasing service costs over a 3-5 year ownership period. The key is selective use. For a quick, safe overtake, it's excellent. For crawling in Marina traffic, it's a costly habit. The system works by the car's ECU and TCU holding gears longer and sharpening throttle response, but it doesn't change the fundamental gear range available. In hybrids like the Toyota Corolla Hybrid, the effect on "fisal" (fuel bill) is less severe but still present, as the engine runs more frequently.
- Fuel economy penalty: ~2 km/l decrease in city driving.
- Annual fuel cost increase: ~1,000 AED for 25,000 km.
- Best for: highway overtaking, mountain roads.
