My neighbours cat (and my cats best mate) got hit by a car and died over the weekend. He was only a year and a bit old. They used to chase each other round the garden and play fight all the time (I must say that what with females being more vicious than males, my cat used to win most of them).
That's all three of their cats that have died over the last 3 or so months, two from old age and one from a car.
Still my mates cat has just had kittens, so it looks like they may be getting another.