A week ago my car got stolen, then I got it back, when I got it back I noticed some visible damages (the tore up the dash to get to my radio big whoop)

It's under the hood that I'm worried about:

The car turned on, it went into first, now when I tried to gas it, the RPMS had to go REALLY high for it to even move. so I got it moving and as it was going it over heated so I stopped it, opened the hood and noticed it was leaking something, either oil/tranny fluid or coolant. I need to know what would cause this? I haven't really Looked at it full YET, could it be that the thiefs just messed up my clutch? If you have any questions ask. I hope I ran through it fully.

 

clutch could be toast, or soaked in oil or something.

You need to gather more information about the car before you post on forums. We can't really help if you haven't done anything.