Question about the book The Outsiders by S.E. Hinton?

My question about the book is probably more of a nitpick but I figured that I should at least ask because I want to see if anybody knows it. If not, I'll just ume and make an *** out of myself. My question is, the year the book takes place in is 1965, but the Curtis brothers have a Ford Taurus which wasn't made until 1985. Was this a blooper on S.E. Hinton's part?