All right, below is a picture of the rat that my cat Pom caught last Thursday. We didn't see it until Friday morning (about 1:00 AM) when we got back from seeing Star Trek. It was very neatly placed in the very center of the garage where it would be between our two cars.
She's a good cat, our Pom. You'll note that the rat would be almost 8 inches long if it we straightened, and the tail is at least that long as well. Pom might just be 15 inches from her shoudlers to the base of her tail, and about 12 inches tall at the shoulder.
We are all very impressed.