Tyre review for Kumho Ecsta PS91 255/40R18 99Y XL
They manage to keep good grip in all conditions. Previously I've had two bigger Kumho Ecsta PS91s on the back with great success. My CL600 bi-turbo produces around 560bhp and 1000Nm of torque and the Kumho Ecsta PS91s coped well with the power so I thought I would do the same and put the same tyres on the front.