Originally Posted by InfernoRedXfire
Yes they are directional. I haven't rotated mine yet but I've just assumed they would be rotated side-to-side and remounted the tires to rims.
Directional tires should only be rotated from front to back on the same side of the car. Since you have 18's on the front and 19's on the rear, you should not rotate your tires at all if they are directional.
P.S. The Conti Sport Contac 2 tires are great!