Question

I got a mechanic 2 do some work on my car.He led me 2 believe he was the owner of his own shop.He DROVE my car from my house 2 the shop. I gave him $1100 for the parts.The work was to be done in a week.He gave me the run around for a month & after I got fed up w/ him I went 2 the shop only find out that he was not the owner of the shop he only leased out a space at the shop & that he owned the shop owner money.I told him to return my money & give me back my car in the same condition I gave it 2 him. He has only returned $600 & has left my car a total wreck.I told the shop owner that I was just going 2 tow my car away & he has refused to give me back my car.But I have never made a deal w/ the shop owner I didn't even know who he was until a week ago.He wants $250 from me or the mechanic b/c he is owned so much money from him. I called the police 2 try and obtain my property and they said its a civil dispute.Who do I sue? And for how much? What do I sue for?