The Goodyear EfficientGrip Performance in size 235/45R21 101T XL is a premium, high-efficiency summer touring tyre heavily optimized for modern Electric Vehicles (EVs) and eco-focused crossovers.

The unusually low T speed rating (up to 190 km/h) on a massive 21-inch wheel is a highly specific engineering choice: it perfectly aligns with the electronic speed limiters of modern EVs while allowing Goodyear to utilize a specialized, ultra-low rolling resistance compound that wouldn't survive higher sports-tyre speed ratings. In Singapore, this specific configuration is a definitive factory-style replacement for premium EVs like the Audi Q4 e-tron, Volkswagen ID.4, and Mercedes-Benz EQC.