I thought the idea was to repel them not to attract them with anti-freze. Anyhow i had the same problem with cats years ago when where i was living, one tomcat would single out my car out of the many other in the milti-storey car park and plonk himself on my bonnet/roof for an midnight siesta. When i returned in the morning to collect my car, there would be a warm spot on my bonnet/roof, fur all around and little foot prints running all over the car. Thats even when my car was filthy:stupid:.
Fortunately the cat didn't scratch the car and the fur would blow off when i drove away so i didn't fuss to much about it. Now moved out so no more cats to worry about. Now new problem is gecko's that s**t all over my car at night. Damn geckos:thefinger: