[svandamme]

first of all, cats don't belong on v-8's, it ain't there natural habitat
cat's don't like loud noises, or the vibrations and heat involved with such things

second of all, i don't see what the fuss is all about if one does have a cat on a v-8
and wants to replace it with another cat

here's a top tip
cat's don't like water

so to get rid of the old cat.. just put the hose on the little bastard
it WILL run off

then simply put the other cat on top of the V-8
i really don't know how you can make it stay there..
maybe some grilled steak or chicken will work, but i doubt it will stay there forever...
cat's tend to bugger off once the they have finished feeding...

just my 2cts worth