is it possible to see how many vehicles out of how many i own are spaded anymore?

Hi, not in the game currently, however we are going to be adding it back. As mentioned above for now you can use the website. Here's how it'll look in-game:

https://forum-en-cdn.warthunder.com/original/3X/f/7/f7f09ac12f15cdbdd8e710535bfd27b35307fd33.jpeg