I got a loan from my bank to buy my first car and I'm confused on buying it outright and the dealership giving my monthly payments I make. Loan from my bank 11,000

2011 Acura TSX 2.4 4dr Se with taxes etc. 11,000

I thought when I got the loan I would just be paying the bank back monthly but after picking my car and everything The car dealer brought me a monthly plan I thought this was just the norm.
But now I'm confused if I'm bringing a check for 11,000 this should cover everything right? 
I didn't buy it yet we just talked bout everything Saturday and I'm going back in Monday to purchase it. 

