Amor Towles' new book is quite the joyride — The Lincoln Highway follows four kids in a 1948 Studebaker who set out along the real-life Lincoln Highway, the first highway to cross the country. Two of them are trying to head for San Francisco to find their mother — the other two want to go the other way, looking for a promised inheritance. Needless to say, things don't go as planned. Towles talked to NPR's Scott Simon about the book — and also about the way the world moves so much faster now than it did in the 1950s, and how that affects the stories kids hear and see and create.