There are a few books at http://www.themotorbookstore.com/good-reading.html
There is also a list at http://www.webrary.org/RS/flbklists/carnovels.html Among the books on this list when I was younger I liked the books by Henry Gregor Felsen. Also, there is always Stephen King’s “Christine.”
Some other possibilities:
Sinclair Lewis, “Free Air”
John Steinbeck, “The Grapes of Wrath”
Henry Miller, “The Air Conditioned Nightmare”
Flannery O’Conner, “Wise Blood”
John Updike, “Rabbit Run”
William Faulkner, “The Reivers”
Tom Wolfe, “The Kandy-Kolored Tangerine-Flake Streamline Baby”
Willam Saroyan, “Short Drive, Sweet Chariot”
John Steinbeck, “Travels with Charley in Search of America”
Vladimir Nabokov, “Lolita”
Arthur Haley, “Wheels”
Harold Robbins, “The Betsy”
There are also a couple of anthologies of automobile writings by assorted literary authors:
Jean Lindamood (editor), “Road Trips, Head Trips and Other Car-Crazed Writings”
Elinor Nauen (editor), “Ladies, Start Your Engines: WOmen Writers on Cars and the Road”
There are many other books about cars, driving, traveling by car, and so on – I suggest a quick Googling or even a search on Amazon.