Cats are more like scrapbooks than automobiles. So holds the Court of Appeal.
Seems right to me. You shouldn't be able to kill or injure a pet and only have to pay $10 (or whatever) because that's the "market value" of a stray. They're a special form of property, with idiosyncratic value. If the owner spends $1000 to save the pet's life, a reasonable jury might find such expenses reasonable. And if so, you've got to pay.