Of all the names you provided, I like Cassandra the best, but I do agree with the past posters that the name will come to you. I forced a name on my first mustang and wish I had waited for it to "come to me". Good luck!
Trinity seems right for yours being its the third car in the trio and its the newest.I showed this to my wife and pointed out to her that we still don't have a name for my 04, and she said we shall call her "Trinity". I don't know, maybe that will be her name from now on.
I voted nemesis
YouTube - Porsche vs Mustang NEMESIS!!!!!
Their is a lady at my work named Cassandra. What a *ucking witch.
My cars name is bitch and shes perfectly fine with it.
If you name your car Cassandra I am calling you Nance.