Lol well for you, since your a woman and it's a red car... i dunnoo... maybe Zigor? means "punishment" and for some unknown reason makes me think red... uhhmm or maybe something less personified likeee the red rocket? lol... best way to name it is to decide what your favorite feature about the car is, and then think of adjectives that describe this and either stick them with a name or a noun that is similar to your car or think of a name that incorporates that quality....

I usually just use pronouns for my car, like hun, sweetie, and babe, but i also sometimes call it "Lady Mercedy"...

p.s., Your the third person i know named Cat!! I thought it would be fairly uncommon