Thoughts:

If you don't have an emergency fund (or sinking fund or whatever you want to call it) for the rentals, you might want to build up one of those. I would want my rentals to pay for their own problems. That's the approach we have taken with ours.

$20k is more car than you probably need. Want is a different thing, but you can get a very nice, reliable used car for $5k or $6k.

I would split the extra $700 a month between the two goals once the EF is built. Maybe $300 a month for the car savings, $400 toward the house. Once the car is purchased, put it all toward the house. It's important you get that equity headed in the right direction. The sooner you are right-side-up, the sooner you will have the freedom to move if you want.