The Kumho Ecsta PS91 is an ultra high-performance summer tyre designed for sports cars and performance-oriented vehicles. It features an asymmetric tread pattern with a C-Cut 3D block design that optimizes braking performance and provides excellent grip in both dry and wet conditions. The tyre incorporates heat-releasing dimple technology to manage high-speed durability and maintains a quiet, comfortable ride quality. It is commonly used on high-end vehicles including Audi R8, BMW M6, Chevrolet Corvette, Porsche 911, and Ferrari F430. The PS91 delivers strong dry grip and stable handling at higher speeds, though wet performance is mixed with some users reporting confidence concerns. Load and speed ratings vary by size, with the tyre designed to handle speeds exceeding 300 km/h.
