19" performance tires

You can put CTS-V Coupe through its paces confidently, riding on these P255/40R19 (front) and P285/35R19 (rear) performance tires. The Y rating identifies them as maintaining integrity at speeds of up to 185 mph, and the GM® Tire Performance Criteria Specification makes it easy when the time eventually comes to buy replacements that will exhibit the ride and handling characteristics you've come to love.