How much do cars cost in Mexico?

Just out of curiousity say i was to take US money to Mexico and purchase a NEW car at a dealership, would it be priced in US money or in pesos? so like if i took 2500.00USD to Mex and exchanged it got like 25000.00 pesos could i end up buying a new 25000.00 car for a mere 2500.00? i am just wondering how all that kinda stuff works we are thinking of going to Mexico and i am just wondering how all this exchange stuff really works.